Fix of schemas needed in assest json files

Hi,

as some of the schemas are updated and no longer exist in the repository, those should be updated here as well. Worth mentioning that I didn't check old content against new schemas.

Asset	Old schema	New schema
VerifiableAuthorisationToOnboard.json	zDpWGUBenmqXzurskry9Nsk6vq2R8thh9VSeoRqguoyMD	zH74MKkYTbQ6ZfTxufi6A3Aw8giS4piGm8dpgxFmkJjmu
VerifiableAuthorisationForTrustChain.json	zDpWGUBenmqXzurskry9Nsk6vq2R8thh9VSeoRqguoyMD	zH74MKkYTbQ6ZfTxufi6A3Aw8giS4piGm8dpgxFmkJjmu
VerifiableAccreditationToAttest.json	zDCGvPRUnnSTkVgnX6xRwQMz8hh4VYuJ4r7nxCNGgSTB1 accreditedFor section: zDpWGUBenmqXzurskry9Nsk6vq2R8thh9VSeoRqguoyMD	zHXHLkJpZg4w9nt2GbEBbyE8uhkfirbmT3nF7mJ9kFnjv accreditedFor section: zH74MKkYTbQ6ZfTxufi6A3Aw8giS4piGm8dpgxFmkJjmu
VerifiableAccreditationToAccredit.json	zDCGvPRUnnSTkVgnX6xRwQMz8hh4VYuJ4r7nxCNGgSTB1 accreditedFor section: zDpWGUBenmqXzurskry9Nsk6vq2R8thh9VSeoRqguoyMD	zHXHLkJpZg4w9nt2GbEBbyE8uhkfirbmT3nF7mJ9kFnjv accreditedFor section: zH74MKkYTbQ6ZfTxufi6A3Aw8giS4piGm8dpgxFmkJjmu
TrustedNodesList.json	z6pHzVWcE9hygBq8UWRXXyR8nRst6rUXMKUkTjMoh3sfJ	zDK9pjQs3Tcq9MH3darHWy8XKAQX8ZVvQUBgcwwe4CXZP
CredentialToAttestVerifiableAuthorisationForTrustChain.json	zDCGvPRUnnSTkVgnX6xRwQMz8hh4VYuJ4r7nxCNGgSTB1 accreditedFor section: zDpWGUBenmqXzurskry9Nsk6vq2R8thh9VSeoRqguoyMD	zHXHLkJpZg4w9nt2GbEBbyE8uhkfirbmT3nF7mJ9kFnjv accreditedFor section: zH74MKkYTbQ6ZfTxufi6A3Aw8giS4piGm8dpgxFmkJjmu
CTRevocableCredential.json	zDpWGUBenmqXzurskry9Nsk6vq2R8thh9VSeoRqguoyMD	zH74MKkYTbQ6ZfTxufi6A3Aw8giS4piGm8dpgxFmkJjmu