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
aim: tweaked a bit grenade handling, so bots should use them more
aim: reduce time between selecting grenade and throwing it away
aim: removed hacks in look angles code, due to removing yb_whoose_your_daddy cvar
aim: use direct enemy origin from visibility check, and not re-calculate it
aim: update enemy prediction, so it now depends on frame interval for a bot
aim: additional height offset are tweaked, and now used only for difficulty 4
nav: tweaked a bit player avoidance code, and it's not preventing bot from checking terrain
nav: do not check banned nodes, when bucket sizes re too low
nav: cover nodes are now selected depending on total bots on server
nav: let bot enter pause task after long jump
nav: extend velocity by a little for a jump, like it was in first versions of bot
nav: stuck checking is now taken in account lower minimal speed if bot is ducking
fix: navigation reachability timers, so bots will have correct current node index while camping
fix: bots are unable to finish pickup or destroy breakable task, if target is not reachable
fix: cover nodes are now calculated as they should
fix: manual calling bots add_[t/ct] now ignores yb_join_team cvar
bot: tweaked a little difficulty levels, so level 4 is now nightmare level, and 3 is very heard
bot: minor refactoring and moving functions to correct source file
bot: add yb_economics_disrespect_percent, so bots can ignore economics and buy more different guns
bot: add yb_check_darkness that allows to disable darkness checks for bot, thus disallowing usage of flashlight
bot: camp buttons are now lightly depends on bot health
chat: welcome chat message from bots is now sent during first freeze time period
crlib: switch over to stdint.h and remove crlib-own types
crlib: fixed alignment in sse code
