Add COBOL extension

[willswire]

This PR adds initial tree-sitter support for COBOL

• Closes: Cobol #132
• See also: Highlights for cobol programming language #585

[notpeter]

Does this extension work for you?
When I attempt to run "Install Dev Extension" your repo it does not succeed.

2024-12-18T09:54:55.874369-05:00 [INFO] compiling grammar cobol for extension /Users/peter/source/zed-cobol
2024-12-18T09:54:55.874766-05:00 [INFO] checking out cobol parser
2024-12-18T09:54:55.915161-05:00 [INFO] building git repository, `.git` path in the worktree: "/Users/peter/source/zed-cobol/grammars/cobol/.git"
2024-12-18T09:54:56.177123-05:00 [INFO] building git repository, `.git` path in the worktree: "/Users/peter/source/zed-cobol/grammars/cobol/.git"
2024-12-18T09:54:56.277534-05:00 [INFO] building git repository, `.git` path in the worktree: "/Users/peter/source/zed-cobol/grammars/cobol/.git"
2024-12-18T09:54:57.26128-05:00 [INFO] building git repository, `.git` path in the worktree: "/Users/peter/source/zed-cobol/grammars/cobol/.git"
2024-12-18T09:54:57.362466-05:00 [INFO] building git repository, `.git` path in the worktree: "/Users/peter/source/zed-cobol/grammars/cobol/.git"
2024-12-18T09:54:57.393137-05:00 [INFO] compiling cobol parser
2024-12-18T09:54:57.462856-05:00 [INFO] building git repository, `.git` path in the worktree: "/Users/peter/source/zed-cobol/grammars/cobol/.git"

But it never finishes.

I haven't dug into it further, but wanted to confirm: did you actually test this?

[willswire]

Hey, thanks for your patience! I revisited this and made a few adjustments to address the issue you encountered. It’s now building and installing successfully on my end.

Let me know if you run into any more problems, and I’ll be happy to dig in further!

[notpeter]

Thanks! And congratulations on you first Zed Extension!