New functions and global modifications

[mthh]

Hi, As I have sometimes to use OSRM, I added other python functions wrapping OSRM (sorry, I also slightly modified the structure of the files/directories, thus allowing simplest call like from osrm import match instead of from osrm import osrm.match and I also cut lines at 80 character on the function match).

Added function :

• nearest (simply return the json returned by osrm),
• locate (idem),
• simple_viaroute (return the json returned by osrm with optionally the geometry (and those from possibles alternatives routes) decoded in WKT or WKB, without support of driving instruction),
• table (return the table requested as a numpy array or as a pandas DataFrame),
• table_OD (construct and return a table between different origins and destinations, eventually by by-passing the max-table-size of OSRM).

Tell me if you are interested to merge these changes (with other changes if needed) or if you prefer that I set my own repository with these functions. Cheers!

[ustroetz]

Thanks @mthh! This is great. Especially thanks for simplifying the existing stuff.

I think it is better to have it all in one repo. So I will merge.

[mthh]

Great! Thanks!