feat(project): add ProjectMgr plugin (#372)

* feat(utility): added ProjectMgr plugin

wip

deleted sessionvim

* fix(project): Use VeryLazy instead of lazy = false in ProjectMgr conf

lua/astrocommunity/project/projectmgr-nvim/README.md

@@ -0,0 +1,25 @@
+# projectmgr.nvim
+
+Quickly switch between projects and automate startup tasks.
+
+**Repository:** <https://github.com/charludo/projectmgr.nvim>
+
+### 🦑 Usage with `telescope.nvim`
+
+`:ProjectMgr` (or <leader>P) toggles a telescope picker with your projects. The telescope preview displays information about your project
+and its current git state.
+The following actions and keybinds are available:
+
+| Key               | Action                                                                                             |
+| :---------------- | :------------------------------------------------------------------------------------------------- |
+| `<CR>`            | Open the project under your cursor                                                                 |
+| `<C-a>`           | Add a project. You will be asked for a name, a path, and optionally startup and shutdown commands. |
+| `<C-d>` / `<C-x>` | Delete project under your cursor                                                                   |
+| `<C-e>` / `<C-u>` | Edit the project under your cursor                                                                 |
+| `<C-q>` / `<ESC>` | Close the window without doing anything                                                            |
+| `<leader>P`       | Open the ProjectMgr panel                                                                          |
+
+### 🦑 Usage without `telescope.nvim`
+
+**projectmgr** comes with a fallback window in case you aren't using `telescope.nvim`. The same actions are available.
+The keybinds are slightly different: `<C-a>` is replaced by just `a`, `<C-q>` becomes just `q`, and so on.

lua/astrocommunity/project/projectmgr-nvim/init.lua

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+return {
+  "charludo/projectmgr.nvim",
+  event = "VeryLazy",
+  keys = {
+    { "<leader>P", "<cmd>ProjectMgr<cr>", desc = "Open ProjectMgr panel" },
+  },
+}