Upgrade to moderngl 5.5.2 + loosen requirements

Author: einarf

setup.py

@@ -27,13 +27,13 @@
         'Topic :: Software Development :: Libraries :: Application Frameworks',
     ],
     install_requires=[
-        'moderngl==5.5.0',
-        'pyrr==0.10.3',
-        'Pillow==5.4.1',
+        'moderngl==5.5.2',
+        'pyrr>=0.10',
+        'Pillow>=5',
         'pyrocket==0.2.8',
         'PyWavefront==1.0.4',
-        'PyQt5==5.12.2',
-        'trimesh==2.38.26',
+        'PyQt5>=5.12',
+        'trimesh>=2.38',
     ],
     extras_require={
         "glfw": ['glfw==1.7.0'],