kneeboard improvements (a 2.0 changelog)

[callmepartario]

add a NAV primer, condensing some of this information:

https://cdn.discordapp.com/attachments/485132014077345793/844860516404035594/unknown.png

quirky behavior like the mandatory slew use in D1/D2 should be in the kneeboard.

[callmepartario]

• added more detailed mk-82 tables (courtesy malamem)
• added mk-82 se reticle/speed/altitude adjustment calculation notes (courtesy sidekick65)
• added primitive guns tables (from heclak's guide, needs some revision for clarity)
• added primitive rocket tables (from heclak's guide) notes on sidewinder and shrike use

[callmepartario]

• added weight / accelleration limit page
• added airpseed / weight limit page
• added other useful notes across pages

[callmepartario]

• added rhws/rwr page and procedures
• added countermeasures procedures

[callmepartario]

have added everything i intend to. there may be small changes or proofreading fixes in the binaries from this point, but this is the changelog.