Updated for new M corvette engines

Fixed an error with Erlking and Astrid Engines using default parameters, thanks to Pitagora for reporting the issue!

- Fixed missing "virtual" engines (engines that are built into a ship without a mesh, such as some BOR and XEN engines)
- Standardised all engine deceleration to 8x their original value
- Engines that have less than 3 seconds TD charge time have been increased to 3s charge. This is to prevent some factions with faster-charging engines escaping too easily.
- Adjusted attack time based on size. S: 2s, M: 2.5s, L/XL: 4s

Fixed PAR L Travel Mk1 using default deceleration parameters

Original release, including Boron engine changes that was missed in the Nexusmods version.