Changed list to dataframe converter for unbalanced lists

The new concepts call has variable fields, which necessitated a change.
Also updated required packaged.
Merge branch 'protobufParser' into transmartRClient
speed up dataframe conversion
Added unittests for parsing protobuf data
The .proto file is now loaded once during package attach

Instead of every time highdim data is parsed.
Removed all runtime dependency loading

All required packages are loaded during initial package attachment
Bugfix: determining varint32 size did not handle single-byte
:fish:

Small whitespace and textual changes
Updated part of the documentation
Added dummy files for missing documentation