Add themes file

Without this you cannot compile notepad_squared, don't know how I missed
this

Also, this commit also tidies up the imports in main, seperating the
core and vendor imports slightly

main.odin

@@ -7,8 +7,8 @@ import "core:slice"
 import "core:strings"
 import "core:time"
 import "core:math"
-import rl "vendor:raylib"
 
+import rl "vendor:raylib"
 
 main :: proc() {
 	context.logger = log.create_console_logger(.Debug)

themes.odin

@@ -0,0 +1,29 @@
+#+feature dynamic-literals
+
+package main
+
+themes := map[string]Colours {
+	"gruvbox dark hard" = Colours{
+		background = Colour{29, 32, 33, 255},
+		text = Colour{227, 218, 186, 255},
+		status_bar_text = Colour{133, 153, 0, 255},
+		line_numbers = Colour{146, 131, 116, 255},
+		line_numbers_background = Colour{40, 40, 40, 255},
+		active_tab = Colour{60, 56, 54, 255},
+		inactive_tab = Colour{50, 48, 47, 255},
+		tab_border =  Colour{102, 92, 84, 255},
+		cursor = Colour{251, 241, 199, 255},
+	},
+	"solarized dark" = Colours{
+		background = Colour{0, 43, 54, 255},
+		text = Colour{131, 148, 150, 255},
+		status_bar_text = Colour{133, 153, 0, 255},
+		line_numbers = Colour{88, 110, 117, 255},
+		line_numbers_background = Colour{7, 54, 66, 255},
+		active_tab = Colour{7, 54, 66, 255},
+		inactive_tab = Colour{0, 43, 54, 255},
+		tab_border = Colour{88, 110, 117, 255},
+		cursor = Colour{147, 161, 161, 255},
+	},
+}
+