Remove Excel Library and add NPOI .NEt
Making sure commit works as Xamarin has been throwing exceptions.
* VPPList-Buddy/VPPList-Buddy.fsproj: 

* VPPList-Buddy/XLS.fs: Start of XLS reimplementation.

* VPPList-Buddy/Resources/Debug NPOI.fsx: Specific debug script for
  NPOI Library
* VPPList-Buddy/VPPList-Buddy.fsproj:
* VPPList-Buddy/Resources/Debug NPOI.fsx: 

* VPPList-Buddy/XLS.fs: More re-implementating.

* VPPList-Buddy/Resources/Debug Workflows.fsx: Renamed from Debug to
  Debug Workflows to reflect use. Will load Debug NPOI as not to
  duplicate code.

* VPPList-Buddy/Resources/Debug.fsx: Renamed
Added gitignore Debug directory + userprefs + task

gitignore bin + obj, userprefs sync and tasks sync
* XLS.fs: Finish implementing functions with NPOI Library. Now on to
  testing!

* VPPList-Buddy.fsproj: Allow the workflows to compile (and they did!
  Yay composable high order functions!)
* VPPList Buddy.userprefs:
* VPPList Buddy.usertasks: Updated

* Debug NPOI.fsx: Added debug stuff

* Debug Workflows.fsx: Added debug tests.

* XLS.fs: Fixed Issue with writing (see updated task) and
  implementation with xlswritetext to work as it should.
* Program.fs: Message on success and etc.

* VPPList-Buddy.fsproj: idk