[NFR]: Micro flavor

[niden]

Goal: a fourth flavor, for Phalcon Micro applications.

Later. Not scheduled.

• A Flavor case for Micro, with default paths, namespaces and a stub set
• Generators: to be decided

devtools had project --type=micro. The shared command default path (see [NFR]: MVC flavor) covers Micro too.

Open

The scope, the generators, and the order relative to [NFR]: MVC flavor and [NFR]: CLI flavor. Shape it when it is scheduled.