Provide helper classes for lazy execution of expensive operations

[kbirken]

For expensive operations in baselanguage code, it is often required (due to performance reasons) to delay expensive operations until the result is actually needed for the first time. There is a pattern for this using the JDK Supplier<T> interface. We should provide this infrastructure in mpsutil so we can use it in other platform components of mbeddr or in IETS3.

[kbirken]

PR is merged to maintenance/mps20222, closing ticket.