Implement per-project settings configuration for UI5 Tooling modules

[RandomByte]

It should be possible to set per-project defaults for various CLI parameters. This should be possible in a settings section of a projects configuration (e.g. ui5.yaml). Most prominently setting a default server port.

Note that CLI parameters passed to a call will always take precedence over any configured settings.

From our current Configuration documentation:

server (optional)

• settings (not yet implemented)
  • port: Project default server port; can be overwritten via CLI parameters

Affected components (if known)

• [x] ui5-builder
• [x] ui5-server
• [ ] ui5-cli
• [ ] ui5-fs
• [x] ui5-project
• [ ] ui5-logger