Add equal, unequal and approximate equal to unit test framework.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
The forecolor control in Linux at unit test framework.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Add time display for unit test framework.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Add input and output for solid matrix.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Add operator +, -, * for solid matrix.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Update change log.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Merge branch 'cpp_test' into cpp
Update readme.

Signed-off-by: CyberZHG <CyberZHG@gmail.com>
Merge branch 'cpp'