Centralize all testing to the test folder instead of each subproject.

Trigger ALL tests when calling `rake test:all` instead of that being just the core tests.

.travis.yml

@@ -17,16 +17,3 @@ install:
   - gem install rubocop -v 0.57.2
 script:
   - cd test && rake ci
-  - make -s
-  - make -s DEBUG=-m32 #32-bit architecture with 64-bit support
-  - make -s DEBUG=-m32 UNITY_SUPPORT_64= #32-bit build without 64-bit types
-  - make -s UNITY_INCLUDE_DOUBLE= # without double
-  - cd ../extras/fixture/test && rake ci
-  - make -s default noStdlibMalloc
-  - make -s C89
-  - cd ../../../extras/memory/test && rake ci
-  - make -s default noStdlibMalloc
-  - make -s C89
-  - cd ../../../examples/example_1 && make -s ci
-  - cd ../example_2 && make -s ci
-  - cd ../example_3 && rake