SC: I-26 Exit Numbers

[Markkos1992]

The rest:
108>-108A  (also affects US 76)

Charleston Area: Reasoning for doing this comes from roadwaywiz's I-26 EB upload from earlier today: 

I-26 WB upload: 

211>-211A 
212A>-211B (and should be slightly relocated)
219C>-CypSt (or maybe remove, it is only .26 miles from 218B)

I am not discussing here where the terminus point should be.  I still have this thread (https://forum.travelmapping.net/index.php?topic=2035.msg6028#msg6028) sitting here for that.

[mapmikey]

changes made