gamecore/modules: remove some instance of hardcoded path

gamecore/modules/assets/imagefonts.lua

@@ -1,4 +1,5 @@
-local Font        = require "core.modules.assets.fonts"
+local cwd  = (...):gsub('%.imagefonts$', '') .. "."
+local Font        = require(cwd.. "fonts")
 local ImageFont   = Font:extend()
 
 function ImageFont:new(filename, extraspacing)

gamecore/modules/scenes.lua

@@ -22,9 +22,11 @@
   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ]]
 
+local cwd  = (...):gsub('%.scenes$', '') .. "."
+
 local Scene  = Object:extend()
-local Assets = require "core.modules.assets"
-local MenuSystem = require "core.modules.menusystem"
+local Assets = require(cwd .. "assets")
+local MenuSystem = require(cwd .. "menusystem")
 
 function Scene:new()
   self.mouse = {}