Pivot Lang support README

add support for Pivot Lang in vscode

pivot-lang is in early development state, so this extension is intended to be used internally.

Name		Name	Last commit message	Last commit date
Latest commit History 42 Commits
.github/workflows		.github/workflows
.vscode		.vscode
src		src
syntaxes		syntaxes
.gitattributes		.gitattributes
.gitignore		.gitignore
.vscodeignore		.vscodeignore
CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
README.md		README.md
language-configuration.json		language-configuration.json
logo.png		logo.png
logo_dark.svg		logo_dark.svg
logo_white.svg		logo_white.svg
package-lock.json		package-lock.json
package.json		package.json
pl.py		pl.py
snippets.json		snippets.json
tsconfig.json		tsconfig.json
vsc-extension-quickstart.md		vsc-extension-quickstart.md

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