CT: US7 Exit Numbers

[cockroachking]

The following points on US7 should be changed to match their corresponding exit numbers:
US1 > 1
CT123 > 2
CT15 > 3
WooHeiRd > 7
BacAve > 8
US202_A > 11
US202_B > 12
The two interchanges with I-84 could also be relabeled 9 and 10.

This also effects the following points on US202:
US7_A > US7(11)
US7_B > US7(12)

Also, since these changes would remove the A and B points from the A/B/C/D sequence on US7 and US202 (awkwardly leaving only C and D), the other points should be changed as well.
US7:
US202_C > US202/67
US202_D > US202 or US202_W

US202:
US7_C > US7/67 or US7_N
US7_D > US7 or US7_S

[yakra]

Since ConnDOT is in the midst of an exit renumbering, I'm not too fussed about changing these right away, even if US7 won't be converted for a few years yet, even if there probably won't be any relabeling conflicts. I'd like to avoid any nasty surprises just in case things get a bit wibbly-wobbly at Exit 1. I'll let the CHM-legacy labels stay grandfathered in a while longer.