Adding crabcavities.

Author: freddieknets

enable_crabcavities.madx

@@ -0,0 +1,16 @@
+exec,crab_remove(A);
+exec,crab_remove(B);
+exec,crab_remove(C);
+exec,crab_remove(D);
+
+exec,crab_make_cc(A,2);
+exec,crab_make_cc(B,2);
+exec,crab_make_marker(C);
+exec,crab_make_marker(D);
+
+exec,crab_installhv(A,posCRABA1,posCRABA2);
+exec,crab_installhv(B,posCRABB1,posCRABB2);
+exec,crab_install(C,posCRABC1,posCRABC2);
+exec,crab_install(D,posCRABD1,posCRABD2);
+
+