Add 4 test bears

These bears have all kinds of settings and the pairs are dependent
on the other. One pair has `@deprecate_settings` decorator applied
to the `run()` method.

tests/test_bears/AllKindsOfSettingsBaseBear.py

@@ -0,0 +1,10 @@
+from coalib.bears.LocalBear import LocalBear
+
+
+class AllKindsOfSettingsBaseBear(LocalBear):
+
+    def run(self, file, filename, config, use_bear: bool,
+            max_line_lengths, no_line: int, use_space: bool = None,
+            use_tab: bool = False, max_line_length: int = 1000,
+            no_char=79, dependency_result=dict()):
+        pass

tests/test_bears/AllKindsOfSettingsBaseDecoratedBear.py

@@ -0,0 +1,12 @@
+from coalib.bears.LocalBear import LocalBear
+from coalib.bearlib import deprecate_settings
+
+
+class AllKindsOfSettingsBaseDecoratedBear(LocalBear):
+
+    @deprecate_settings(max_line_lengths='tab_width')
+    def run(self, file, filename, config, use_bear: bool,
+            max_line_lengths, no_line: int, use_space: bool = None,
+            use_tab: bool = False, max_line_length: int = 1000,
+            no_char=79, dependency_result=dict()):
+        pass

tests/test_bears/AllKindsOfSettingsDependentBear.py

@@ -0,0 +1,13 @@
+from coalib.bears.LocalBear import LocalBear
+from tests.test_bears.AllKindsOfSettingsBaseBear import \
+    AllKindsOfSettingsBaseBear
+
+
+class AllKindsOfSettingsDependentBear(LocalBear):
+    BEAR_DEPS = {AllKindsOfSettingsBaseBear}
+
+    def run(self, file, filename, configs, use_bears: bool,
+            no_lines: int, use_spaces: bool = None,
+            use_tabs: bool = False, max_line_lengths: int = 1000,
+            no_chars=79, chars=False, dependency_results=dict()):
+        pass

tests/test_bears/AllKindsOfSettingsDependentDecoratedBear.py

@@ -0,0 +1,15 @@
+from coalib.bears.LocalBear import LocalBear
+from coalib.bearlib import deprecate_settings
+from tests.test_bears.AllKindsOfSettingsBaseDecoratedBear import \
+    AllKindsOfSettingsBaseDecoratedBear
+
+
+class AllKindsOfSettingsDependentDecoratedBear(LocalBear):
+    BEAR_DEPS = {AllKindsOfSettingsBaseDecoratedBear}
+
+    @deprecate_settings(max_line_lengths='tab_width')
+    def run(self, file, filename, configs, use_bears: bool,
+            no_lines: int, use_spaces: bool = None,
+            use_tabs: bool = False, max_line_lengths: int = 1000,
+            no_chars=79, chars=False, dependency_results=dict()):
+        pass