This adds LARC-V to Liberation (required by USA 1970)
Also adds Speedboat to Liberation (required by NVA 1970)
Both units are available via pydcs but have not been added to Liberation
thus far as no factions used them (until now).
Includes an Argentina 1982 faction for testing purposes, although it's
sparse because of a lack of assets in DCS.
Note that the carrier is mispelled as the Vienticinco in the game.
Includes prerequisite pydcs update.
Fixes https://github.com/dcs-liberation/dcs_liberation/issues/3123.
- Unified SA-10, SA-10B, SA-12, SA-20, SA-20B, SA-23 to only one template: SA-300 Site
- Updated the unit groups for S-300
- unified russian and chinese navy templates
- added frigate class
