cleaning up thanos plugin interface

builtin_xforms/move_globals/mg_driver.cpp

builtin_xforms/p1transform/PNMain.cpp

irdb-libs/ir_builders/fill_in_cfg.cpp

irdb-libs/ir_builders/fill_in_cfg.hpp

irdb-libs/ir_builders/fill_in_indtargs.cpp

irdb-libs/ir_builders/fix_calls.cpp

irdb-libs/libIRDB-core/include/libIRDB-core.hpp

irdb-libs/libIRDB-core/include/transform_step.h

irdb-libs/libIRDB-core/include/transform_step_state.hpp

irdb-libs/libIRDB-core/src/SConscript

irdb-libs/libIRDB-core/src/transform_step.cpp

irdb-libs/rida/rida.cpp

irdb-libs/thanos/thanos.cpp

irdb-sdk