Implement Gtk Network Status (#165)

Implemented
- Switch reacts to burrow socket and network changes 
- meson as build system
- Basic diagnostics to ensure burrow is installed properly
- Flatpak / Meson Building

burrow-gtk/com.hackclub.burrow.json

@@ -1,56 +0,0 @@
-{
-    "app-id" : "com.hackclub.burrow",
-    "runtime" : "org.gnome.Platform",
-    "runtime-version" : "45",
-    "sdk" : "org.gnome.Sdk",
-    "sdk-extensions" : [
-        "org.freedesktop.Sdk.Extension.rust-stable"
-    ],
-    "command" : "burrow-gtk",
-    "finish-args" : [
-        "--share=network",
-        "--share=ipc",
-        "--socket=fallback-x11",
-        "--device=dri",
-        "--socket=wayland"
-    ],
-    "build-options" : {
-        "append-path" : "/usr/lib/sdk/rust-stable/bin",
-        "build-args" : [
-            "--share=network"
-        ],
-        "env" : {
-            "RUST_BACKTRACE" : "1",
-            "RUST_LOG" : "burrow-gtk=debug"
-        }
-    },
-    "cleanup" : [
-        "/include",
-        "/lib/pkgconfig",
-        "/man",
-        "/share/doc",
-        "/share/gtk-doc",
-        "/share/man",
-        "/share/pkgconfig",
-        "*.la",
-        "*.a"
-    ],
-    "modules" : [
-        {
-            "name" : "burrow-gtk",
-            "builddir" : true,
-            "subdir" : "burrow-gtk",
-            "buildsystem" : "simple",
-            "build-commands": [
-                "cargo build --release",
-                "install -Dm755 -t /app/bin target/release/burrow-gtk"
-            ],
-            "sources" : [
-                {                
-                    "type": "dir",
-                    "path": "../"
-                }
-            ]
-        }
-    ]
-}