[9198] Replace targeted movegen by 2 new: chase/follow movegens.

[newsbot]

<pre>m sql/mangos.sql
+ sql/updates/9198_01_mangos_mangos_string.sql
m sql/updates/Makefile.am
m src/game/AggressorAI.cpp
m src/game/CreatureEventAI.cpp
m src/game/GuardAI.cpp
m src/game/Language.h
m src/game/Level2.cpp
m src/game/Level3.cpp
m src/game/MotionMaster.cpp
m src/game/MotionMaster.h
m src/game/ReactorAI.cpp
m src/game/TargetedMovementGenerator.cpp
m src/game/TargetedMovementGenerator.h
m src/game/Unit.cpp
m src/shared/revision_nr.h
m src/shared/revision_sql.h

[9198] Replace targeted movegen by 2 new: chase/follow movegens.

NOTE: this is mostly just formal adding 2 movegens with very limited cleanups.
Real result from adding 2 new movegens possible after apply more deep cleanups/fixes
in UNIT_STAT_CHASE/UNIT_STAT_FOLLOW set. But this will need more cereful changes
because we have currently sometime strange dependences and places for set for this flags.
Similar cleanups required for other movegen related flags. Infact i have related patches but
need more testing before apply step by step.</pre>



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