[Ohrrpgce] SVN: teeemcee/9113 Add utf8_to_latin1() and utf8_to_OHR() functions

[subversion at HamsterRepublic.com]

teeemcee
2017-08-04 10:11:58 -0700 (Fri, 04 Aug 2017)
200
Add utf8_to_latin1() and utf8_to_OHR() functions

They didn't already exist because the UTF8 decoding routines were only
used in decode_filename, which needs to use the locale instead of assuming UTF8
---
U   wip/common.bi
U   wip/common.rbas
U   wip/const.bi
U   wip/util.bas
U   wip/util.bi