drop sysproxy.exe in net-core version

update build target

accidentally removed Fody few commits ago when debugging

Net core build

and plain cipher for aead for fun

partially revert 421554f8ec

Init JS variable in more reliable and quick way, reduce redundant code

- Redirect the nuget \3rd folder to ..\packages folder as default by
  remove the nuget.config file
- Update csproj file: remove unnecessary scripts for old nuget
  packages on old .Net framework
- Upgrade nuget packages to .Net framework 4.7.2 as the target framework
- Downgrade Fody to 4.2.1. The 5.0.0+ requires MSBuild 16 and above

- Uncompress the text file for better version control
- Touch the PAC files in first place

- Split the file operations to new PACDaemon
- More precise matching logic for handling PAC content http request

Support Windows 10 1903 Light Theme

Support Windows 10 1903 Light Theme (Menu icon color)

binary modified via OD with tray icon function calls bypassed

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>

Auto register hotkeys

- update mbedtls to 2.7.0, use new md5 api
- update libsodium to 1.0.16
- static link to openssl 1.1.0g, check libsscrypto repo for detail

Add OpenSSL 1.1.0g support due to hardware acceleration

Note: If you want to compile it by yourself, please make sure
do NOT use `no-asm` configure option, since the main point of
this commit is to utilize assembly in openssl

Add OpenSSL test

to get rid of deep copy

- update NuGet pkg

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>

replace zxing with NuGet pkg