update metadata

CMakeLists.txt

 cmake_minimum_required (VERSION 3.15..3.17)
-project (fresnel VERSION 0.1)
+project (fresnel CXX)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)

requirements.txt

+numpy >= 1.19.4
+scipy >= 1.5.2

setup.py

@@ -10,7 +10,9 @@ except ImportError:
 setup(
     name="fresnel",
     version="0.1",
+    author='Leon M. Lohse',
+    author_email='llohse@uni-goettingen.de',
+    url='https://gitlab.gwdg.de/irp/fresnel',
     packages=['fresnel'],
-    #package_dir={'': 'source/'},
     cmake_install_dir='fresnel/'
   )