* Add CommandIterator.ConVarFlags property
Allow to access the convar flags `FCVAR_*` value from the iterator.
The CommandIterator.Flags property should have been called `AdminFlags`,
but it's too late to change that now.
* Switch admin help menu to use CommandIterator.ConVarFlags
No need to lookup the convar again.
* Deprecate CommandIterator.Flags
Rename it to .AdminFlags now that we have two kinds of flags exposed
on the iterator.
Allows using `FCVAR_HIDDEN` to block commands from appearing in `sm_help` and `sm_searchcmd` which helps with creating alias to commands without filling up the list with those aliases.
For example:
```sourcepawn
RegAdminCmd("sm_setmyperk", MyCommand, ADMFLAG_CHEATS);
RegAdminCmd("sm_setmyperks", MyCommand, ADMFLAG_CHEATS, _, FCVAR_HIDDEN);
RegConsoleCmd("ff2_boss", MyCommand);
RegConsoleCmd("ff2boss", MyCommand, _, FCVAR_HIDDEN);
```
Various minor things done to project files
Updated sample extension project file and updated makefile to the new unified version (more changes likely on the way)
Updated regex project file and makefile
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401971
