Add #scite bibtex import support

[mwjames]

Add support for bibtex import via #scite for creating citation resources as easy as copy-and-paste into a structured format.

Code in BibtexParsercomes from PARSEENTRIES[0]

[0] http://bibliophile.sourceforge.net

Examples

{{#scite:
 |bibtex=@article{Sh:2,
author = {Shelah, Saharon},
ams-subject = {(05.04)},
journal = {Journal of Combinatorial Theory},
review = {MR 39-2652},
pages = {298--300},
title = {Note on a min-max problem of Leo Moser},
volume = {6},
year = {1969},
}
}}

{{#scite:
 |bibtex=@ARTICLE{Meyer2000,
AUTHOR="Bernd Meyer",
TITLE="A constraint-based framework for diagrammatic reasoning",
JOURNAL="Applied Artificial Intelligence",
VOLUME= "14",
ISSUE = "4",
PAGES= "327--344",
YEAR=2000
}
}}