MD: add manual MD > CW mappings

[dwhieb]

@katieschmirler is working on manually mapping the remaining unmapped MD entries to CW entries. The data so far lives here:

https://drive.google.com/drive/u/0/folders/0B3eCGz24iHRmN292ZzY3eHp2NXc

Incorporate these mappings into ALTLab's version of the MD database.

[aarppe]

@dwhieb Note that not all of Katie's development of FST-style analyses for non-recognized MD forms will map to CW entries, but might be entirely new lemmas and stems, that need to be included in our ALTLab Cree database, alongside Arok's CW content, so that they can both be incorporated in the LEXC files, so that those MD forms will get their paradigms and be analyzable.

[aarppe]

@dwhieb We need to establish the file/place where we can add mappings between MD and CW. An example is MD:wapimew, which should be mapped against CW:wâpamêw and MD:mitsow with CW:mîcisow. These are examples of high-frequency linkings that ought to be done asap.