backport: nodes flooder (analyzer) from cs-ebot

analyze: allow to disable goal marking
analyze: add cvars descriptions and bounds
nav: added optional post path smoothing for astar algorithm
nav: now bots will use Dijkstra algo instead of floyd-warshall if memory usage too high (controlled via yb_path_floyd_memory_limit cvar) (fixes #434)
nav: vistable are now calculated every frame to prevent game-freeze during loading the game (fixes #434)
graph: pracrice reworked to hash table so memory footprint is as low as possible (at cost 5-10% performance loss on practice) (fixes #434)
control: bots commands now is case-insensitive
bot: major refactoring of bot's code
nav: issue warnings about path fail only with debug
practice: check for visibility when updating danger index
analyzer: suspend any analyzing on change level
control: add kickall_ct/kickall_t
nav: increase blocked distance in stuck check

inc/control.h

@@ -216,7 +216,7 @@ public:
       m_args.clear ();
 
       for (int i = 0; i < engfuncs.pfnCmd_Argc (); ++i) {
-         m_args.emplace (engfuncs.pfnCmd_Argv (i));
+         m_args.emplace (String (engfuncs.pfnCmd_Argv (i)).lowercase ());
       }
    }
 
@@ -274,5 +274,14 @@ template <typename ...Args> inline void BotControl::msg (const char *fmt, Args &
    }
 }
 
+// graph heloer for sending message to correct channel
+template <typename ...Args> inline void BotGraph::msg (const char *fmt, Args &&...args) {
+   if (m_silenceMessages) {
+      return; // no messages while analyzing (too much spam)
+   }
+   BotControl::instance ().msg (strings.format (conf.translate (fmt), cr::forward <Args> (args)...));
+}
+
+
 // explose global
 CR_EXPOSE_GLOBAL_SINGLETON (BotControl, ctrl);