* utest: move testcases of Utest from example to Utest folder
Create unit-test-cases for the Utest framework subsystem
according to "How to add utest cases into RT-Thread for your module." [1]
Link:
https://rt-thread.github.io/rt-thread/page_component_utest.html#autotoc_md804
[1]
The original `components/utilities/utest` directory already has unit
testcases, which are more comprehensive than the testcases in
`examples/utest/testcases/utest/`. Therefore, simply deleted
the test cases in `examples` and used the existing testcases
in the utest framework.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
* utest/utest: rename name and add license text
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
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Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
