Created an STL Parser for ASCII and Binary STL types. Parser auto detects STL type so it should work as a fire and forget style parser. In my tests I used various models from Thingiverse and did not run into any issues though I am sure some exist.

I am working towards further developments on this such as wireframe option and more testing.
Fixed two bugs.
1) In AMeshParser mRootObject is automatically instantiated by one constructor and not by the other.
2) StlParser assumed fileIn would not be null. This is not the case when loading from the SdCard.
Cleaned up StlParser and made it more flexible to use. Also added helper methods for determining file type.
Merge pull request #352 from ToxicBakery/STLParser-Clean

Created an STL Parser for ASCII and Binary STL types. Parser auto detect...