Improve peripheral fragments to include more peripheral devices and support instantiating multiple instances of same device

[T-K-233]

Improve peripheral fragments to include more peripheral devices and support instantiating multiple instances of same device

This is a new PR regarding the discussion in #1397:

• Removed WithUARTOverride per requested. User can generate ChipConfig from scratch if the default UART address need to be changed.
• Added several other helpful peripheral config fragments, which are used in the tapeout class chip.
• Minor addition on ignoring the .vscode/ folder.

Related PRs / Issues:

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• RTL change
• Software change (RISC-V software)
• Build system change
• Other

Contributor Checklist:

• Did you set main as the base branch?
• Is this PR's title suitable for inclusion in the changelog and have you added a changelog:<topic> label?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• Did you mark the PR with a changelog: label?
• (If applicable) Did you update the conda .conda-lock.yml file if you updated thexconda requirements file?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you add a test demonstrating the PR?

• (If applicable) Did you mark the PR as Please Backport?

[jerryz123]

Isn't this one already provided by rocket-chip?

[T-K-233]

Oh I'm not using this one. I can remove it.