v0.49.15 Development Snapshot

• PR #3735: Maintenance cost shown in whole C-Bills
• Issue #3741: Stratcon fixes

• Improve contrast between revealed/unrevealed hexes
• Generate scenario using default temp mappings when facility-specific mappings aren't present
• fix missing badlands image
• definition file paths are now linux-friendly

• Issue #3725: Improve performance when searching for parts using "planetary acquisition"
• Issue #2854: Implemented CamOps errata for avionics repair times
• PR #3756: Tech level filtering in the unit selector dialog has been corrected
• Issue #3747: Unable to Assign Pilots to Tripod Mechs
• PR #3766: weight calculation for spare mech locations
• PR #3768: Arano Restoration Campaign - Planetary Control