add new configuration parameter for checksum algorithm preference
adjust Spring bean configuration for new parameter
add new API method for clients to use parameter
implement new API method on server
set clients to use new API method for checksum algorithm selection
update tests for new API method and add unit tests for method
make Adler-32 least favored
revert server API check to allow testing of pre-adjustment PRs
Merge pull request #1653 from mtbc/11202-negotiate-hasher

fix #11202: introduce suggestChecksumAlgorithm method to FS API