ProgramSponsorType enumeration--add "State and Federal"

Summary of outcomes for Data Standard 2.1

• Problem Addressed: A method is needed to indicate that a program is sponsored both by state and federal funds.
• High-level Reasoning: The ProgramSponsorType reference in Program allows only one value per program. However, a program may have multiple sponsors of different types.
• Changes Made: Updated cardinality of Program.ProgramSponsor to "optional collection"

Original ticket description follows:

MI Extensions need "State and Federal" to the enumeration list of ProgramSponsorType.