We should implement the exclusion of files/folders in the explorer view. - [x] in the explorer view, excluded files should be visualy marked (font/color/icon, whatever) - [x] list of excluded resources should be saved in a file - [x] on changes, the lsp server should be notified - [ ] set commands accessibility and keybindings - [ ] tpd file parsing: validation, included/excluded folders - [ ] handle selected tpd file changes - [ ] saving last state before switch - [ ] handle default vscode exclude settings The server expects the following json request: ``` "excludedStates": [ { "identifier": { "uri": "file:///whateverA" }, "isExcluded": true }, { "identifier": { "uri": "file:///whateverB" }, "isExcluded": false }, ... ]