Add player and board size meta data to all game maps (#84)

* WIP: initial data model for new meta props
* WIP: implemented new props
* test and bug fix:
- add coverage of players and sizes
- fix unlimited map size bug
* FIX: update supported players for arcade to 6
* fix: test should be min -> max, not max->max
* Change some naming and the FixedSizes function
* update comment to reflect API changes
* improve comment clarity
* rename field for improved clarity
* change some more "map" -> "board" wording

maps/game_map_test.go

@@ -62,3 +62,18 @@ func TestBoardStateEditor(t *testing.T) {
 	editor.ClearHazards()
 	require.Equal(t, []rules.Point{}, boardState.Hazards)
 }
+
+func TestMapSizes(t *testing.T) {
+	s := FixedSizes(Dimensions{11, 12})
+	require.Equal(t, s[0].Width, uint(11))
+	require.Equal(t, s[0].Height, uint(12))
+
+	s = FixedSizes(Dimensions{11, 11}, Dimensions{19, 25})
+	require.Len(t, s, 2)
+	require.Equal(t, s[1].Width, uint(19))
+	require.Equal(t, s[1].Height, uint(25))
+
+	s = AnySize()
+	require.Len(t, s, 1, "unlimited maps should have just one dimensions")
+	require.True(t, s.IsUnlimited())
+}