Feat: Page Indicator (v1)

[Joshua-Lester3]

Description

Added progress percent to top of page. I want to iterate on this feature with some of the following possible changes:

• Perhaps add page number field to Tooling side for the following reasons:
  • More intuitive to enter page number to navigate to it
  • Easier to read/remember than a percentage
  • More accurate
• Add ability to navigate to percent/page number
• Add same functionality to tooltip as the following issue suggests

Fixes IntelliTect-dev/EssentialCSharp.Tooling#442

Ensure that your pull request has followed all the steps below:

• Code compilation
• Created tests which fail without the change (if possible)
• All tests passing
• Extended the README / documentation, if necessary