single prec float changes, thatnls Steve

git-svn-id: https://svn.code.sf.net/p/freetel/code/codec2-dev@1895 01035d8c-6547-0410-b346-abe4f91aad63
insert errors handles codec frame sizes that are not multiples of 8 bits

git-svn-id: https://svn.code.sf.net/p/freetel/code/codec2-dev@1896 01035d8c-6547-0410-b346-abe4f91aad63