add psenet

ppocr/postprocess/pse_postprocess/pse/setup.py

+from distutils.core import setup, Extension
+from Cython.Build import cythonize
+import numpy
+
+setup(ext_modules=cythonize(Extension(
+    'pse',
+    sources=['pse.pyx'],
+    language='c++',
+    include_dirs=[numpy.get_include()],
+    library_dirs=[],
+    libraries=[],
+    extra_compile_args=['-O3'],
+    extra_link_args=[]
+)))