Add pause button to printing interface, and auto pause when M0 or M1 is hit.
Add pause button to printing interface, and auto pause when M0 or M1 is hit.

CapnBry/OctoPrint,JackGavin13/octoprint-test-not-finished,aerickson/OctoPrint,eliasbakken/OctoPrint,mrbeam/OctoPrint,mrbeam/OctoPrint,dragondgold/OctoPrint,nicanor-romero/OctoPrint,skieast/OctoPrint,Voxel8/OctoPrint,MaxOLydian/OctoPrint,abinashk-inf/AstroBox,sstocker46/OctoPrint,senttech/OctoPrint,shohei/Octoprint,DanLipsitt/OctoPrint,mayoff/OctoPrint,ryanneufeld/OctoPrint,shaggythesheep/OctoPrint,shohei/Octoprint,spapadim/OctoPrint,DanLipsitt/OctoPrint,markwal/OctoPrint,alephobjects/Cura,nickverschoor/OctoPrint,Voxel8/OctoPrint,abinashk-inf/AstroBox,JackGavin13/octoprint-test-not-finished,AstroPrint/AstroBox,AstroPrint/AstroBox,masterhou/OctoPrint,uuv/OctoPrint,Javierma/OctoPrint-TFG,dansantee/OctoPrint,senttech/OctoPrint,alex1818/OctoPrint,rurkowce/octoprint-fork,MolarAmbiguity/OctoPrint,Catrodigious/OctoPrint-TAM,CapnBry/OctoPrint,mcanes/OctoPrint,javivi001/OctoPrint,Mikk36/OctoPrint,bicephale/OctoPrint,chriskoz/OctoPrint,ErikDeBruijn/OctoPrint,Catrodigious/OctoPrint-TAM,dansantee/OctoPrint,MaxOLydian/OctoPrint,C-o-r-E/OctoPrint,3dprintcanalhouse/octoprint1,madhuni/AstroBox,ymilord/OctoPrint-MrBeam,ymilord/OctoPrint-MrBeam,chriskoz/OctoPrint,mayoff/OctoPrint,uuv/OctoPrint,ryanneufeld/OctoPrint,foosel/OctoPrint,eliasbakken/OctoPrint,MolarAmbiguity/OctoPrint,aerickson/OctoPrint,aerickson/OctoPrint,javivi001/OctoPrint,dragondgold/OctoPrint,sstocker46/OctoPrint,beeverycreative/BEEweb,nicanor-romero/OctoPrint,Jaesin/OctoPrint,mcanes/OctoPrint,EZ3-India/EZ-Remote,eddieparker/OctoPrint,C-o-r-E/OctoPrint,sstocker46/OctoPrint,bicephale/OctoPrint,spapadim/OctoPrint,javivi001/OctoPrint,shaggythesheep/OctoPrint,spapadim/OctoPrint,ErikDeBruijn/OctoPrint,MolarAmbiguity/OctoPrint,foosel/OctoPrint,madhuni/AstroBox,ErikDeBruijn/OctoPrint,eddieparker/OctoPrint,Catrodigious/OctoPrint-TAM,SeveQ/OctoPrint,punkkeks/OctoPrint,AstroPrint/AstroBox,ryanneufeld/OctoPrint,nickverschoor/OctoPrint,Skeen/OctoPrint,shohei/Octoprint,abinashk-inf/AstroBox,chriskoz/OctoPrint,Javierma/OctoPrint-TFG,leductan-nguyen/RaionPi,Javierma/OctoPrint-TFG,madhuni/AstroBox,Jaesin/OctoPrint,markwal/OctoPrint,EZ3-India/EZ-Remote,mcanes/OctoPrint,Skeen/OctoPrint,alephobjects/Cura,C-o-r-E/OctoPrint,chriskoz/OctoPrint,MoonshineSG/OctoPrint,EZ3-India/EZ-Remote,ymilord/OctoPrint-MrBeam,madhuni/AstroBox,skieast/OctoPrint,3dprintcanalhouse/octoprint1,bicephale/OctoPrint,shohei/Octoprint,punkkeks/OctoPrint,MoonshineSG/OctoPrint,SeveQ/OctoPrint,beeverycreative/BEEweb,alex1818/OctoPrint,3dprintcanalhouse/octoprint2,ymilord/OctoPrint-MrBeam,nicanor-romero/OctoPrint,d42/octoprint-fork,MaxOLydian/OctoPrint,mayoff/OctoPrint,JackGavin13/octoprint-test-not-finished,Javierma/OctoPrint-TFG,alex1818/OctoPrint,alephobjects/Cura,leductan-nguyen/RaionPi,CapnBry/OctoPrint,hudbrog/OctoPrint,foosel/OctoPrint,nickverschoor/OctoPrint,Skeen/OctoPrint,beeverycreative/BEEweb,mrbeam/OctoPrint,skieast/OctoPrint,punkkeks/OctoPrint,hudbrog/OctoPrint,shaggythesheep/OctoPrint,ymilord/OctoPrint-MrBeam,hudbrog/OctoPrint,SeveQ/OctoPrint,JackGavin13/octoprint-test-not-finished,foosel/OctoPrint,leductan-nguyen/RaionPi,markwal/OctoPrint,ryanneufeld/OctoPrint,EZ3-India/EZ-Remote,3dprintcanalhouse/octoprint2,MoonshineSG/OctoPrint,Salandora/OctoPrint,nickverschoor/OctoPrint,rurkowce/octoprint-fork,masterhou/OctoPrint,masterhou/OctoPrint,beeverycreative/BEEweb,jneves/OctoPrint,jneves/OctoPrint,CapnBry/OctoPrint,leductan-nguyen/RaionPi,eliasbakken/OctoPrint,Mikk36/OctoPrint,Voxel8/OctoPrint,Jaesin/OctoPrint,uuv/OctoPrint,Salandora/OctoPrint,shohei/Octoprint,MoonshineSG/OctoPrint,Jaesin/OctoPrint,Salandora/OctoPrint,abinashk-inf/AstroBox,Salandora/OctoPrint,d42/octoprint-fork,dansantee/OctoPrint,dragondgold/OctoPrint,jneves/OctoPrint,bicephale/OctoPrint,senttech/OctoPrint,Mikk36/OctoPrint,eddieparker/OctoPrint,senttech/OctoPrint