feat(startscreen): add class for buttons

src/button.py

@@ -0,0 +1,20 @@
+import pygame
+
+class Button:
+    def __init__(self, text, width, height, pos_x, pos_y, color, hover):
+        self.text = text
+        self.width = width
+        self.height = height
+        self.pos_x = pos_x
+        self.pos_y = pos_y
+        self.color = color
+        self.hover = hover
+
+        # todo
+
+    def draw(self, screen):
+        action = False
+
+        # todo
+
+        return action