add unit test to check total cargo volume

Merge pull request #353 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-419-vecto-error-messages to develop

* commit '3bebcada':
  extend testcases about segment lookup to include body weight and trailer weight
  add missing body declaration

Merge pull request #352 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-419-vecto-error-messages to develop

* commit 'fe6bbfe3':
  Adapt exception texts, add list of exceptions

Merge pull request #351 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-416-measured-speed-with-gear-fails to develop

* commit '3c5b07e2':
  change criteria to disengage when halting to include requested torque
  cycle gearbox: return gear 0 if disengaged for too long

Merge pull request #350 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:feature/VECTO-405-add-clucht-losses-during-drive-off to develop

* commit '182f2418':
  coach test: extend axle loss map; write mod data; aaux test: rename mod-files
  distance-based driving cycle: increment distance by ds as reported from driver. driver: set simulation distance in response
  Driver: perform halt action if overload after two attempts and vehicle is stopped
  adapt gearbos downshift test case
  update testcase, update comment
  update testdata due to changed columns
  fix in gearbox, remove unnecessary condition
  update testcases due to changed columns
  update documentation on columns in vmod and vsum file, add equations on power / energy balance.
  TorqueConverter: set input and output speeds when not active; Gearbox/AT Gearbox: use 'effective' transmission ratio to compute input-torque from output torque (required after gearshifts)
  engine: write engine power demand only if not set (by e.g. pto controller); fix: auxiliary don't store powerdemand for mapping aux in current state on dry-run clutch: initialize clutch-loss to 0 by default cleanup summary data container
  more mod-data & sum-data integrity tests
  engine idle controller: handle the case when the traction interruption is already over
  clutch losses apply only during drive off, during drive convert torque 'power equivalent'
  transmission torque loss is related to gbx output side
  gearbox: when disengaged search operating point for gbx-in torque = 0; compute gbx losses as diff gbx-in - gbx-out
  auxiliaries: update internal state only if not dry-run
  fix: don't set gearbox in speed to engine speed
  fixed typo reading JSON input data

aaux test: rename mod-files

driver: set simulation distance in response

Merge pull request #349 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-415-powershift-losses-are-not-considered to develop

* commit '89dde615':
  enable powershift loss computation for AT-PS gearboxes, consider inertia factor

Gearbox/AT Gearbox: use 'effective' transmission ratio to compute input-torque from output torque (required after gearshifts)

fix: auxiliary don't store powerdemand for mapping aux in current state on dry-run
clutch: initialize clutch-loss to 0 by default
cleanup summary data container

gearbox: when disengaged search operating point for gbx-in torque = 0; compute gbx losses as diff gbx-in - gbx-out

Merge pull request #348 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-408-at-gearbox-set-gearbox-inertia to develop

* commit '2ef1aec3':
  set gearbox inerta to 0 for AT transmissions

Merge pull request #347 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-411-simulation-aborts-when-traction to develop

* commit 'a3359ece':
  reset braking power before next search, fix gearbox: add inertia

Merge pull request #346 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:feature/VECTO-379-input-deleted-if-error-detected to develop

* commit '27282295':
  fix: reading torque converter data
  adding new source type for missing files (tabledata); shiftpolygon check for missing data
  gui: fix gearbox drawing pic if engine file is invalid
  make json input data tolerant for missing files (used when opening in user interface)
  handle case when engine fld file (or something other) is not valid and thus drawing the picture in the job form fails

* commit 'b78e8bd2':

* commit '06bcceca':
  adapt testcases for coach: use engine vfld with higher torque at low engine speeds for some testcases
  driver strategy: slightly increase lookahead distance if for full-stop
  changed clutch model: take into account axlegear and 1st-gear ratio; adapt values due to changes in clutch
  changed clutch model: coach engine has not enough torque to drive off at 2% slope -> increase engine torque for low engine speeds
  shift strategy: skip check for ignoring upshift if next engine speed is below clutch-closing speed
  adapt testcase due to changes of in-torque computation in clutch
  adapt testcases due to changed gearbox behavior: no not issue null-requests, use clutch-closed to check if clutch is open or not
  adapt cutch test due to changed clutch behavior: clutch-norm-speed changed, no 'power equivalent' output torque - remains constant; no neg. clutch losses
  correct torque converter data: no constant torque ratio
  measured speed / cycle gearbox; do not issue null requests to clutch, default gear is 1 for next gear lookahead; adapt coasting speed in testcase
  adapt engine tests (idle jump) - clutch no longer accepts null for outSpeed, required info from databus