Color Schemes (#142)

* WIP: Color Schemes

* Import/export using color_schemes config

* Finish color scheme implementation

* Add color scheme rename

color-schemes/Linux Console.ron

@@ -0,0 +1,38 @@
+(
+    name: "Linux Console",
+    foreground: "#FFFFFF",
+    background: "#000000",
+    cursor: "#FFFFFF",
+    bright_foreground: "#AAAAAA",
+    dim_foreground: "#E2E2E2",
+    normal: (
+        black: "#000000",
+        red: "#AA0000",
+        green: "#00AA00",
+        yellow: "#AA5500",
+        blue: "#0000AA",
+        magenta: "#AA00AA",
+        cyan: "#00AAAA",
+        white: "#AAAAAA",
+    ),
+    bright: (
+        black: "#555555",
+        red: "#FF5555",
+        green: "#55FF55",
+        yellow: "#FFFF55",
+        blue: "#5555FF",
+        magenta: "#FF55FF",
+        cyan: "#55FFFF",
+        white: "#FFFFFF",
+    ),
+    dim: (
+        black: "#000000",
+        red: "#70221A",
+        green: "#458340",
+        yellow: "#814514",
+        blue: "#0A1B44",
+        magenta: "#7E1B7E",
+        cyan: "#278B8B",
+        white: "#8F8F8F",
+    ),
+)