Cleaned up/updated CLion project generation code and templates.

SConscript

@@ -3,11 +3,16 @@ import copy
 import enum
 import glob
 import inspect
+import jinja2
 import json
+import multiprocessing
 import os
+import pathlib
 import psutil
+import shutil
 import sys
 import time
+import uuid
 
 
 class TargetType(enum.Enum):
@@ -478,15 +483,9 @@ def _generate_project(project_type: str) -> None:
     }.get(project_type, (None, None))
     if not source_folder:
         _error(None, 'Invalid project type option.')
-    
-    import uuid
     def _generate_uuid() -> str:
         return str(uuid.uuid4())
     
-    import pathlib
-    import shutil
-    import multiprocessing
-    
     root_path = pathlib.Path(env.Dir('#').abspath)
     def _get_executables() -> list:
         result = []
@@ -500,7 +499,6 @@ def _generate_project(project_type: str) -> None:
                 })
         return result
 
-    import jinja2
     jinja_env = jinja2.Environment()
     jinja_env.globals['generate_uuid'] = _generate_uuid
     jinja_env.globals['project'] = {
@@ -508,7 +506,7 @@ def _generate_project(project_type: str) -> None:
         'executables': _get_executables(),
         'build_types': ['debug', 'release_debug', 'release', 'profile']
     }
-    jinja_env.globals['scons_exe'] = env['ENV']['_']
+    jinja_env.globals['scons_exe'] = shutil.which('scons')
     jinja_env.globals['nproc'] = multiprocessing.cpu_count()
     
     source_path = pathlib.Path(source_folder)