Far manager Colorer syntax highlight for Ficus

[dmitrys99]

Add syntax definition for Ficus to use with Far manager Colorer plugin.

Supported:

• keywords
• exceptions from library
• functions from library
• expressions +, ==, :> and so on
• f-, r- and plain strings
• numbers (with optional suffixes)
• directives (including @ccode with C code highlight)
• types
• var keyword highlighted separately from val
• characters, type parameters and matrix transposition