Add fluent-bit language server

[sh-cho]

• Repository: https://github.com/sh-cho/fluent-bit-lsp
• Clients
  • Visual Studio marketplace: https://marketplace.visualstudio.com/items?itemName=sh-cho.vscode-fluent-bit
  • OpenVSX registry: https://open-vsx.org/extension/sh-cho/vscode-fluent-bit

This fluent-bit-lsp repository is for fluent-bit configuration file.

For now, it only supports some basic features, but will improve later.

[keegancsmith]

thanks