Many more structural parts are now cheaper.
Merge branch 'master' of github.com:KSP-RO/RP-0

* 'master' of github.com:KSP-RO/RP-0:
  Increase PF fairing/shroud costs
  Update Solid fuel / SRM costs
  fix duplicate modules on LR-79/89 and H-1/RS27
  Correct descriptions of AJ10 and Blok E/L