[translation] fix c translation wrapper gen bug
[translation] fix c translation wrapper gen bug

Perviously wasn't recursively searching models for c translation wrapper
events.

jjffryan/pymtl,jck/pymtl,12yujim/pymtl,jjffryan/pymtl,cornell-brg/pymtl,Glyfina-Fernando/pymtl,Glyfina-Fernando/pymtl,cfelton/pymtl,cornell-brg/pymtl,jck/pymtl,cfelton/pymtl,tj93/pymtl,12yujim/pymtl,jck/pymtl,cornell-brg/pymtl,jjffryan/pymtl,cfelton/pymtl,12yujim/pymtl,Glyfina-Fernando/pymtl,tj93/pymtl,tj93/pymtl