Catch FileNotFound exceptions when loading the samples and ignore them

Some samples have `/path/to/...` placeholders, which will never load correctly (#274)

Author: civerachb-cpr

clearpath_generator_robot/test/test_generator_launch.py

@@ -57,6 +57,8 @@ def test_samples(self):
                 print(f'Unsupported accessory: {e}')
             except UnsupportedPlatformException as e:
                 print(f'Unsupported platform: {e}')
+            except FileNotFoundError as e:
+                print(f'File not found: {e}')
             except Exception as e:
                 errors.append("Sample '%s' failed to load: '%s'" % (
                     sample,

clearpath_generator_robot/test/test_generator_param.py

@@ -61,6 +61,8 @@ def test_samples(self):
                 print(f'Unsupported accessory: {e}')
             except UnsupportedPlatformException as e:
                 print(f'Unsupported platform: {e}')
+            except FileNotFoundError as e:
+                print(f'File not found: {e}')
             except Exception as e:
                 errors.append("Sample '%s' failed to load: '%s'" % (
                     sample,