add boolean expression parser to disable programs

[fayer3]

fixes #1026

adds a boolean expression parser. it might not be the best implementation, but it works from my testing.

the parser uses 2 Stacks, one for operations andone for the parsed values.
expressinos are read front to back, and evaluated back to front.
brackets and && chains are evaluated once they close/end

[douira]

the negation handling is a little funky and I have a few minor nitpicks but it looks good to me overall! Thanks for the work.

[IMS212]

There's a important question here; what's stopping JCPP from automatically doing all of this?

[fayer3]

jcpp only replaces the options
afaik it only evaluates boolen expressions in #ifs

[fayer3]

you could maybe do some regex to convert

program.X.enabled=A && B || C

to

#if !(defined A && defined B || defined C)
program.X.enabled=false
#endif

that should then work with jcpp

[IMS212]

Thanks!