onnxruntime

Doc Updates for Build  (#3976)

* Initial update of readme

* Readme updates

* Review of consolidated README (#3930)

* Proposed updates for readme (#3953)

I found some of the information was duplicated within the doc, so attempted to streamline

* Fix links

* More updates

- fix build instructions
- nodejs doc reorganization
- roadmap update
- version fixes

* Update ORT Server build instructions

* More doc cleanup

* fix python dev notes name

* Update nodejs and some links

* sync eigen version back to master

* Minor fixes

* add nodsjs to sample table of content

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* address PR feedback

* address PR feedback

* nodejs build instruction

* Update Java instructions to include gradle

* Roadmap refresh

Reformat some data, fix link, minor rewording

* Clarify Visual C++ runtime req

Co-authored-by: Nat Kershaw (MSFT) <nakersha@microsoft.com>
Co-authored-by: Prasanth Pulavarthi <prasantp@microsoft.com>
Co-authored-by: manashgoswami <magoswam@microsoft.com>