Revert "New JamVM source, not reconfigured yet"

This reverts commit 825925f68f1e56efda3b94d6be419dc30fb3f3c1.
Revert "Removed JamVM source"

This reverts commit 6bab00386e986b3879ceed98668744fdfc81fae0.
Revert "Fixed JamVM configure"

This reverts commit a2af40fe8b5c3b87b5cade9466d132a5cd8e4863.
Revert "Added JamVM BSD+MIPS folder to Makefile"

This reverts commit d3b02f0c68ae1e60bfde5cf608985d28e06803b3.
JNI calls for CHERI