Add reserved keywords

[bilal-alsharifi]

Fixes #231

This PR adds a list of keywords that RPC Generators in all platforms (iOS, Java Suite, JavaScript Suite) should avoid using by following these rules:

• If the generator needs to create a variable or method and the name was one of the names in the reserved keyword, the generator should append the suffix Param to it. For example getFunctionID > getFunctionIDParam
• Any empty line in the reserved keywords file should be ignored
• Any line in the reserved keywords file that starts with one or more # symbols then space should be considered a comment and ignored (like #<space> or ##<space> or ###<space> …). Note that some reserved keywords have a # without a <space> so it can't just check for #.
• Reserved keywords matching should be case insensitive
• Although the reserved keywords list has a section for each platform, The generator for each platform should avoid using any of the keywords whether it belongs to that platform or another one.

[crokita]

There is a weird case for CancelInteraction where both getFunctionID and setFunctionID are used, but only the getFunctionID is a reserved keyword. If we want consistency with the method name changes, setFunctionID may need to be added to this list so that both will have the same suffix once generated. Thoughts?

[bilal-alsharifi]

Good point @crokita I am okay with adding setFunctionID to prevent that weird case from happening. What do you think @joeljfischer ?

[joeljfischer]

the generator should append the suffix param to it.

For clarity, I think that should be Param.

Any line in the reserved keywords file that starts with one or more # symbols then space should be considered a comment and ignored

I would add that some reserved keywords have a # without a <space> so it can't just check for #

[joeljfischer]

I think this should also be case insensitive

[bilal-alsharifi]

@joeljfischer I applied your requested changes.

[crokita]

Please resolve my previous question about adding setFunctionID to the list before continuing

[bilal-alsharifi]

@crokita done.