remove (unused) efficiency column from transmission loss map (efficiency is sopported for a single gear)

Merge pull request #219 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:bugfix/VECTO-262-wrong-total-vehicle-weight-for to develop

* commit '564d6785': (44 commits)
  adding gross vehicle weight for ST1 trailer, adding explicit assertions for max payload
  change testcase to more realistic values
  added tests for Segment 2, Segment 3, Segment 4 and Segment 5 Vehicles in Declaration Mode
  code formatting
  additional check for DBNull for P_aux
  added missing gear params in test (up shift time, down shift time, min acc)
  updated values in tests for new weight calculation
  added missing gear Data in test (upshift, downshift, min acc)
  changed test (P_aux returning unexpected DBNull)
  set trailer gross vehicle weight in engineering adapter
  code formatting
  combined Curbweight and CurbweightExtra for internal calculation
  added setting of CdA2 values for mission types (lines 382-392)
  code formatting
  added trailer display suffix, changed diagram interval
  added setting of trailertype for mission, added logic for correct trailer type
  added trailertype
  added semitrailer weights
  faster pdf report creation (create pages in parallel), writes with using-statement
  updated report templates (wrong name for Speed and Loading field for first Run)
  ...

* commit 'c977023f':
  update data source after chaning UI property via code
  show filebrowser in file dialog for alternator map and hvac ssm file

Merge pull request #216 in VECTO/vecto-sim from ~EMQUARIMA/vecto-sim:hotfix/VECTO-302-aaux-does-not-store-hvac-filepath to master

* commit 'b5dd8824':
  update data source after chaning UI property via code
  show filebrowser in file dialog for alternator map and hvac ssm file