Project management terms

as reported by Christophe in #7 (comment 84895)

Should add some management terms:

• ACS: ALMA Common Software
• AIV: Acceptance Integration and Verification (a standard systems engineering term)
• ASWG: Analysis and Simulation Working Group
• ESCAPE: a european funding project to unite a bunch of telescopes to develop common software
• ICD: Interface Control Document (another standard systems engineering term)
• UC: Use Case