Components designed exclusively for cmakev2 are not compatible with
cmakev1 due to the lack of forward compatibility. It is important to
clarify this at the very beginning of the `Creating a New Component`
section. Additionally recommended a guidance on how to create a
component that will be compatible with both versions.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>