build(setup.py): bump version to v2.0.0

Last v1.75 comes from upstream's version in jp2file.py.

I decided to use semver to follow internal convention.

Signed-off-by: Bofu Chen (bafu) <bofu@numbersprotocol.io>

Author: bafu

setup.py

@@ -10,7 +10,7 @@
 
 setup(
     name='codestream_parser',
-    version='v1.75',
+    version='v2.0.0',
     description='All-JPEG Codestream/File Format Parser Tools',
     long_description=long_description,
     long_description_content_type="text/markdown",