Add missing devDependencies in package.json
Add missing devDependencies in package.json

voxbone/JsSIP,Escaux/SIP.js,CodeYellowBV/JsSIP,Voiceworks/SIP.js,onsip/SIP.js,markandrus/SIP.js,vconsult/JsSIP,josephfrazier/SIP.js,tqcenglish/JsSIP,DrumTechnologiesLtd/JsSIP,AaronZhangL/JsSIP,joseph-onsip/SIP.js,onsip/SIP.js,ronlobo/SIP.js,rusekr/JsSIP,dpocock/JsSIP