Add unit test for properly splitting dollops when created from overlapping instructions. This also adds comments for other unit tests.

1. Add a profile flag for cases when user wants
to compile zipr with the ability to generate profiles
during its execution.

2. Update the -std flag so that we can
compile on DECREE VMs.

This fixes a bug where dollop creation incorrectly
continued past IBTs. IBTs should always start a
dollop and this fixes that.

Move functionality to determine if a dollop for
an instruction already exists and whether to split
the containing dollop into AddNewDollop and use
that to implement UpdateTargets.

Test for some of the new type-specific
actions that can be performed on types.

that start/end on the same byte are actually
1-byte big. Update tests to confirm this.

calling RemoveFreeRange().