Add FML #952 as hardcoded dep for LiteLoader 1.7.10_02

This updates the hardcoded FML dependency for LiteLoader 1.7.10_02, by adding a new FML_VERSION delayed token.  It still shows the standard "FG 1.2 does not support.. " if minecraft.version is not valid/supported, but resolves the FML version to '1.7.10' if minecraft.version was invalid.