rename xlat functions.

rename xlat functions.

via scripts, with some manual fixes to the unit tests.  Changing the length of an xlat
function changes the offset in a string where an error occurs.

perl -p -i -e 's/%concat\(/%str.concat\(/g' $(git grep -l 'concat' doc/antora raddb src/tests)
perl -p -i -e 's/%explode\(/%str.split\(/g' $(git grep -l 'explode' doc/antora raddb src/tests)
perl -p -i -e 's/%hmacmd5\(/%hmac.md5\(/g' $(git grep -l 'hmacmd5' doc/antora raddb src/tests)
perl -p -i -e 's/%hmacmd4\(/%hmac.md4\(/g' $(git grep -l 'hmacmd4' doc/antora raddb src/tests)
perl -p -i -e 's/%hmacsha1\(/%hmac.sha1\(/g' $(git grep -l 'hmacsha1' doc/antora raddb src/tests)
perl -p -i -e 's/%lpad\(/%str.lpad\(/g' $(git grep -l 'lpad' doc/antora raddb src/tests)
perl -p -i -e 's/%rpad\(/%str.rpad\(/g' $(git grep -l 'rpad' doc/antora raddb src/tests)
perl -p -i -e 's/%substr\(/%str.substr\(/g' $(git grep -l 'substr' doc/antora raddb src/tests)
perl -p -i -e 's/%randstr\(/%str.rand\(/g' $(git grep -l 'randstr' doc/antora raddb src/tests)
perl -p -i -e 's/%md4\(/%hash.md4\(/g' $(git grep -l 'md4' doc/antora raddb src/tests)
perl -p -i -e 's/%md5\(/%hash.md5\(/g' $(git grep -l 'md5' doc/antora raddb src/tests)
perl -p -i -e 's/%sha2_224\(/%hash.sha2_224\(/g' $(git grep -l 'sha2_224' doc/antora raddb src/tests)
perl -p -i -e 's/%sha2_256\(/%hash.sha2_256\(/g' $(git grep -l 'sha2_256' doc/antora raddb src/tests)
perl -p -i -e 's/%sha2_384\(/%hash.sha2_384\(/g' $(git grep -l 'sha2_384' doc/antora raddb src/tests)
perl -p -i -e 's/%sha2_512\(/%hash.sha2_512\(/g' $(git grep -l 'sha2_512' doc/antora raddb src/tests)
perl -p -i -e 's/%blake2s_256\(/%hash.blake2s_256\(/g' $(git grep -l 'blake2s_256' doc/antora raddb src/tests)
perl -p -i -e 's/%blake2b_512\(/%hash.blake2b_512\(/g' $(git grep -l 'blake2b_512' doc/antora raddb src/tests)
perl -p -i -e 's/%sha3_224\(/%hash.sha3_224\(/g' $(git grep -l 'sha3_224' doc/antora raddb src/tests)
perl -p -i -e 's/%sha3_256\(/%hash.sha3_256\(/g' $(git grep -l 'sha3_256' doc/antora raddb src/tests)
perl -p -i -e 's/%sha3_384\(/%hash.sha3_384\(/g' $(git grep -l 'sha3_384' doc/antora raddb src/tests)
perl -p -i -e 's/%sha3_512\(/%hash.sha3_512\(/g' $(git grep -l 'sha3_512' doc/antora raddb src/tests)
perl -p -i -e 's/%tolower\(/%str.lower\(/g' $(git grep -l 'tolower' doc/antora raddb src/tests)
perl -p -i -e 's/%toupper\(/%str.upper\(/g' $(git grep -l 'toupper' doc/antora raddb src/tests)
perl -p -i -e 's/%urlquote\(/%url.quote\(/g' $(git grep -l 'urlquote' doc/antora raddb src/tests)
perl -p -i -e 's/%urlunquote\(/%url.unquote\(/g' $(git grep -l 'urlunquote' doc/antora raddb src/tests)