Add stock_configs/CA Calling Frequencies.csv

Ref:
- https://www.rac.ca/50-mhz-6m-page/
- https://www.rac.ca/144-mhz-2m-page/
- https://www.rac.ca/220-mhz-135-cm-page/
- https://www.rac.ca/432-mhz-70-cm-page/
- https://www.rac.ca/902-mhz-33-cm-page/
- https://www.rac.ca/2300-mhz-13-cm-page/

chirp/stock_configs/CA Calling Frequencies.csv

@@ -0,0 +1,7 @@
+Location,Name,Frequency,Duplex,Offset,Tone,rToneFreq,cToneFreq,DtcsCode,DtcsPolarity,Mode,TStep,Skip,Comment,URCALL,RPT1CALL,RPT2CALL
+1,6m Call,52.525000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,
+2,2m Call,146.520000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,
+3,70cm Call,446.000000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,
+4,33cm Call,904.500000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,
+5,23cm Call,1294.500000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,
+6,13cm Call,2305.200000,,0.000000,,88.5,88.5,023,NN,FM,5.00,,,,,