Add support for Swift

[fortinmike]

At the moment, that implies tweaking:

• Select Methods and Functions
• Select Method and Function Signatures
• Duplicate Methods and Functions
• Copy Method and Function Declarations
• Highlight Occurrences of Symbol

Possible approaches:

• Use SourceKitten: https://github.com/jpsim/SourceKitten
• Use SourceKittenDaemon: https://github.com/terhechte/SourceKittenDaemon
• Read this: http://www.jpsim.com/uncovering-sourcekit
• Simple regexes like the Obj-C support (not very nice, especially considering the fast-moving nature of Swift)

[icanswiftabit]

I can't wait for this features :)

[fortinmike]

@Dudi00 I can't promise what will get implemented first and when, but what XcodeBoost feature(s) would be most useful to you in Swift?

[icanswiftabit]

@fortinmike At this moment the most usefull feature will be "Highlight Occurrences of Symbol" :).