#128 fix generate_amalgamated_file.py after extracting some inline files

* conditional includes starts with "#   include" and regexp pattern used to discover includes was not ready for it

Author: YarikTH

support/generate_amalgamated_file.py

@@ -23,7 +23,7 @@
 output_header = root_path.joinpath(root_path, 'single_include', 'ureact', 'ureact_amalgamated.hpp')
 
 # Compiled regular expression to detect ureact self includes
-internal_include_parser = re.compile(r'\s*#include <(ureact/.*)>.*')
+internal_include_parser = re.compile(r'\s*#\s*include <(ureact/.*)>.*')
 
 # Copyright text
 copyright_text = '''\