Move samples back to main repository

[csviri]

We agreed that the main sample will be moved back to the main (this) repository.

• Tomcat operator
• MySql operator
• WebApp operator

[csviri]

Now the samples are back for v2, will work long term to improve them.
https://github.com/java-operator-sdk/java-operator-sdk/tree/main/sample-operators

[csviri]

Will close this issues, to complete e2e tests will create a new one.