Add LSP support for Solidity (#1848)

* Add LSP support for Solidity

This requires a recent version of Solidity 0.8.11+

* Add Solidity to docs

* Update the docs

book/src/generated/lang-support.md

@@ -54,6 +54,7 @@
 | ruby | ✓ |  | ✓ | `solargraph` |
 | rust | ✓ | ✓ | ✓ | `rust-analyzer` |
 | scala | ✓ |  | ✓ | `metals` |
+| solidity |  |  |  | `solc` |
 | svelte | ✓ |  | ✓ | `svelteserver` |
 | tablegen | ✓ | ✓ | ✓ |  |
 | toml | ✓ |  |  |  |

languages.toml

@@ -988,3 +988,14 @@ indent = { tab-width = 2, unit = "  " }
 [[grammar]]
 name = "org"
 source = { git = "https://github.com/milisims/tree-sitter-org", rev = "1c3eb533a9cf6800067357b59e03ac3f91fc3a54" }
+
+[[language]]
+name = "solidity"
+scope = "source.sol"
+injection-regex = "sol"
+file-types = ["sol"]
+roots = []
+comment-token = "//"
+indent = { tab-width = 4, unit = "    " }
+language-server = { command = "solc", args = ["--lsp"] }
+