AZ: AZ 303 Extension South of I-10 and Exit Numbers

[Markkos1992]

Based on the Arizona State Highways System Map, and that AZ Loop 303 SB is signed going south of I-10, AZ Loop 303 should be extended south to Canyon Trails Blvd.  (I am glad for once that I saw this before going on a trip.)

Exit Number Revisions:
I-10>-104
110>-110A
111>-110B
US60>-119
MirRd>-123

An overall route recentering may also be helpful here.

[Duke87]

https://github.com/TravelMapping/HighwayData/pull/5051

Noticed a few new interchanges that weren't included as I went around recentering things so I added those too.
- new exits 122, 123, and 125 on I-10
- new exit 222 on I-17
- new exit 194 on US 60

[Markkos1992]

Thank you.  Anything to help me make less posts on this forum these days would be helpful. 

(A couple number revisions I found on AZ 202:  34>-34B, AZ24>-34A)