Add Verilog-chisel side by side Reference Page to Docs (#2323) (#2426)

Co-authored-by: Shola Ogunkelu @Shorla
Co-authored-by: Megan Wachs <megan@sifive.com>
Co-authored-by: Deborah Soung <debs@sifive.com>

Completed as part of Outreachy Internship Dec 2021-March 2022.

(cherry picked from commit 362702f3

)

Co-authored-by: Olushola Ogunkelu <77856859+Shorla@users.noreply.github.com>