Add a missing stubs.

Author: nekonomicon

cl_dll/hl/hl_baseentity.cpp

@@ -108,6 +108,8 @@ Vector UTIL_VecToAngles( const Vector &vec ){ return 0; }
 CSprite *CSprite::SpriteCreate( const char *pSpriteName, const Vector &origin, BOOL animate ) { return 0; }
 void CBeam::PointEntInit( const Vector &start, int endIndex ) { }
 CBeam *CBeam::BeamCreate( const char *pSpriteName, int width ) { return NULL; }
+const Vector &CBeam::GetStartPos( void ){ return g_vecZero; }
+const Vector &CBeam::GetEndPos( void ){ return g_vecZero; }
 void CSprite::Expand( float scaleSpeed, float fadeSpeed ) { }
 
 CBaseEntity* CBaseMonster::CheckTraceHullAttack( float flDist, int iDamage, int iDmgType ) { return NULL; }