feat: pfd now displays current mach

[nakajimayoshi]

closes #281

wasm diff

See #12 for wasm module diff

Description

PFD Airspeed indicator now dispays mach above 0.4 when accelerating, with a 10s visual highlight.
After the value is displayed, the rendering threshold is moved to 0.38.

TODO:

• [x] determine when mach value is no longer rendered when decelerating.

Source material

-8 FCOM 10.10.2 https://www.youtube.com/watch?v=xU2axZ-Jh-A&start=1146 https://youtu.be/wrDQizpL2FM

Testing Instructions

Load aircraft in air. Set MCP speed to Mach 0.4 and use throttles/speedbrakes to accelerate and decelerate above & below 0.4.

Test Results

https://user-images.githubusercontent.com/52870481/223472046-e6b337e2-1c64-4751-a105-5295f119e716.mp4

Discord Username

@HowNowBrownCrow#2591

[alokm95]

Quality Assurance Tester

Discord : Alok #2913 Object of testing: #PR 290 Tier of Testing : 1 Date : 19/03/2023

Testing Process: -Spawned on runway, set MCP to 0.4 Mach and took off -Ensure that Mach number above 0.4 is rendered in PFD

Negatives: N/A

Testing Results: Passed

Conclusions: Fixed as intended and LGTM

Media: