Tests: add case for coins created in G and G3, being spent in H and H3. Reorg test and case for coinstake on different chains
Tests: add case for coins created in G and G3, being spent in H and H3.
Reorg test and case for coinstake on different chains

PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX,PIVX-Project/PIVX