[GSOC] Integrated support for Zvkned, Zvknha, Zvksed and Zvksh

[SyedHassanUlHaq]

This PR serves as a central reference point for all my contributions during the GSOC period. Below is a list of pull requests:

• update nix usage for building docker image
• Zvbb Smoke Test
• integrated support for zvbb insn
• integrated support for Zvbc and Zvkg instructions
• Integrated support for Zvkned, Zvknha, Zvksed and Zvksh