[Ohrrpgce] SVN: teeemcee/10738 Split out format_float from format_percent and make it use exponents for

[subversion at HamsterRepublic.com]

teeemcee
2018-10-06 03:36:02 -0700 (Sat, 06 Oct 2018)
233
Split out format_float from format_percent and make it use exponents for huge numbers

However I didn't try to do the same for tiny ones

Neither C's printf nor FB's format seems to have a way to display a float of any size sensibly!
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U   wip/common.bi
U   wip/common.rbas