Parallel execution of tasks

[petermuessig]

Expected Behavior

It should be possible to execute some tasks in parallel.

Current Behavior

Today the tasks are executed sequentially.

Steps to reproduce the issue

not related

Context

not related

Affected components (if known)

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