add frida action to copy methods/classes as frida snippets

[eybisi]

PR for #1355.
Adds Copy as frida snippet option to code area popup.

• Adds correct overload signature to function snippets.
• Adds arguments (with names) as function parameter.
• Tracks which class definition already given to user. ( no duplicate definitions )
• Inserts kinda dummy information logging to function body.
• Inserts $ to inner class names so frida will be happy.

[lgtm-com]

This pull request introduces 1 alert when merging 9014ba6 into bd4509f - view on LGTM.com

new alerts:

• 1 for Equals on incomparable types

[skylot]

@eybisi thanks!

[jpstotz]

This PR has one major mistake: The created frida snippet uses the deobfuscated class names which only exist in Jadx, instead of the real class names.

[skylot]

@jpstotz oh, I see. Funny that class copy uses correct name.
Anyway, it is better to use ClassInfo.getRawName() to get class name used in bytecode.