Various additions and refactorizations to MSFS plugin

[JesperJorg]

End user visible

Bugfixes

• Fixed new value for some cases of wrapping around when adjusting with an encoder
• Corrected border for buttons when disabled
• Fixed background image of Flashlight in Lights folder
• Fixed rounding error in display of fuel remaining
• Fixed rounding error of N1 values in the RPM input
• Fixed rounding error in the gallons per hour display of the Fuel display
• Fixed these two problems in the airliner dynamic folder: -- The last two buttons could not be shown because there was no navigation to second page. -- The four reset commands were not implemented. They are now implemented as in the AP folder.

Added Functionality

• Added a new encoder for showing and adjusting VOR OBS
• Added a weather display input
• Added tuning of ADF frequencies to the NAV dynamic folder
• Barometer encoder shows pressure in both InHg and hPa
• Added a cockpit view folder that also supports setting custom views
• Added a lights display input
• ConnectionSimConnect can now also disconnect
• RPM input can now show N2 too
• RPM input can now handle propeller planes with 4 engines
• Fuel display now also shows pounds per hour
• RPM input: for turbo props, Ng and RPM are shown

Other

• Changed Barometer encoder push button to setting altimeter to current pressure rather than standard pressure
• NAV frequency adjustment adjusts with step 0.05 rather than 0.01

Improvements to maintainability

• Using environment variable to target the MSFS SDK rather than hardcoded path C:\MSFS_SDK
• Made comments in the code for where to add code for new bindings
• Added unit tests for ConvertTool
• Added a class for debug tracing
• Restricted access to properties of Binding class to be read only externally
• Creation of Binding instances now mainly done in MsfsData.Register, which is now called by a BindingKeys value
• Lowered instances of encoder value flipping back and forth when adjusting an encoder by multiple steps
• Interface Notify renamed to INotify
• Changed included SimConnect.dll to be that from SU14
• Centralized definition of generally used colors
• Added missing disposals of BitmapBuilder objects
• Split SimConnectDAO.cs into smaller pieces
• Simplified how: -- Sim values get set to Binding objects -- Data definitions are added
• Removed unnecessary duplicate binding keys for lights and autopilot functionality
• Started work to introduce names for all bindings such that changes and adjustments can refer to the relevant bindings by name rather than indexing in a list

Refactorizations

• ImageTool: Avoid prefixing with class name inside the class
• Removed superfluous this references
• Change to coding preferences: prefer predefined types for .NET framework types
• Introduced a new MSFSData Register method that avoids throwing bindings away
• Introduced DecimalValueAdjuster to centralize logic for adjustment in connection with encoders
• Removed leading underscore in various field names

[calibx]

Ok lot of changes ... I will cherrypick them if all if ok

[calibx]

Ok I will merge them in a temp branch to allow cherry pick and simplify update for your repo

[JesperJorg]

Thank you. I have a couple of changes more that I would like to make a new PR for. The most important thing is that I have fixed (in the Binding class) more occurrences of encoder values flickering (e.g. heading and vor/obs) back and forth when the encoder is changed rapidly.