#39 firebird 2.5 support for SynHighlighterSQL

[miwa]

Hello.
I added Firebird dialect support to SQL highlighter, becouse starting from version 2.1, and especially from 2.5 it becomes too different from Interbase6. Hope, it will be useful for somebody else.

In attachment - patch.txt is result of command

diff <modified SynHighlighterSQL.pas> <original SynHighlighterSQL.pas>

and modified SynHighlighterSQL.pas is aqlso included.

And thank you very much for a useful suite.

[miwa]