dwm Tweaks

Suckless dwm patches enabling auto nmaster and better fullscreen toggle.

Maybe I'll release these as .diff patches at some point.

included patches

• visible border
• full-gap

custom patches

• fullscreen monocle toggle to use bind to togglemono, default MODKEY + m
• auto nmaster mode (automatically adjust monitor nmaster based on client count instead of manually adjusting with incnmaster), configurable in config.h

/* auto_nmaster mappings */
static const int mastermapping[] = {
  1, // nclient=0
  1, // nclient=1
  1, // nclient=2
  2, // nclient=3
  2, // nclient=4
  3, // nclient=5
  // past this just nclients/2
};

to use bind to toggle_auto_nmaster, default MODKEY + t