doc-updates: significant changes

- fixed link to release page in version.html
- converted each item in arch-test page to sub-sections
- adding labels to abstract-class for easy reference
- added new page on details of riscof commands
- minor typos and links fixed in coverage page
- fixed description and usage for database generator
- removed newtest addition and testformat pages
- added new inputs page to describe the inputs required for RISCOF
- cleaned up minor typos and link in the installation page. Also added a little more details about the plugins.
- fixed links to testformat spec all over
- cleaned up the "build you plugin" page with more details and clarity.
- updated the test-list page with coverage labels as a node in the dictionary