The packing/unpacking steps for Boolean values was failing because the
code expected numerical values. I overrode the functions for the Boolean
metatable to account for this. I also had to exclude the Boolean
metatable from the GenerateTypes helper function, as that was overriding
the Pack/Unpack functions defined in its metatable.
Added Linux bash script to run Lua tests from the command line.
Bug: google/flatbuffers#5379
Tested: Added Lua tests that were failing and are now fixed with the
code changes.
Derek Bailey