Add tools/diagnose script.
Add tools/diagnose script.

This script does a basic sanity check on a dev environment.

synicalsyntax/zulip,isht3/zulip,niftynei/zulip,cosmicAsymmetry/zulip,showell/zulip,christi3k/zulip,susansls/zulip,verma-varsha/zulip,kou/zulip,brockwhittaker/zulip,JPJPJPOPOP/zulip,eeshangarg/zulip,dattatreya303/zulip,Galexrt/zulip,jackrzhang/zulip,amanharitsh123/zulip,ryanbackman/zulip,mahim97/zulip,christi3k/zulip,punchagan/zulip,mahim97/zulip,j831/zulip,brainwane/zulip,niftynei/zulip,dawran6/zulip,aakash-cr7/zulip,sonali0901/zulip,dhcrzf/zulip,verma-varsha/zulip,showell/zulip,dattatreya303/zulip,eeshangarg/zulip,verma-varsha/zulip,eeshangarg/zulip,isht3/zulip,blaze225/zulip,rishig/zulip,jrowan/zulip,jackrzhang/zulip,dhcrzf/zulip,jackrzhang/zulip,PhilSk/zulip,andersk/zulip,rishig/zulip,Galexrt/zulip,Diptanshu8/zulip,amyliu345/zulip,souravbadami/zulip,andersk/zulip,AZtheAsian/zulip,christi3k/zulip,sharmaeklavya2/zulip,mahim97/zulip,rishig/zulip,tommyip/zulip,vabs22/zulip,isht3/zulip,verma-varsha/zulip,jainayush975/zulip,sonali0901/zulip,brockwhittaker/zulip,jainayush975/zulip,punchagan/zulip,shubhamdhama/zulip,timabbott/zulip,susansls/zulip,amanharitsh123/zulip,andersk/zulip,susansls/zulip,jainayush975/zulip,jainayush975/zulip,shubhamdhama/zulip,niftynei/zulip,jrowan/zulip,tommyip/zulip,dawran6/zulip,christi3k/zulip,JPJPJPOPOP/zulip,amanharitsh123/zulip,souravbadami/zulip,showell/zulip,Galexrt/zulip,JPJPJPOPOP/zulip,cosmicAsymmetry/zulip,zulip/zulip,hackerkid/zulip,eeshangarg/zulip,souravbadami/zulip,sharmaeklavya2/zulip,brainwane/zulip,jrowan/zulip,kou/zulip,SmartPeople/zulip,susansls/zulip,cosmicAsymmetry/zulip,SmartPeople/zulip,shubhamdhama/zulip,eeshangarg/zulip,vaidap/zulip,zulip/zulip,jrowan/zulip,showell/zulip,kou/zulip,aakash-cr7/zulip,zulip/zulip,dhcrzf/zulip,dhcrzf/zulip,showell/zulip,jphilipsen05/zulip,ryanbackman/zulip,tommyip/zulip,samatdav/zulip,hackerkid/zulip,synicalsyntax/zulip,jackrzhang/zulip,aakash-cr7/zulip,eeshangarg/zulip,aakash-cr7/zulip,ryanbackman/zulip,showell/zulip,PhilSk/zulip,rht/zulip,hackerkid/zulip,SmartPeople/zulip,jrowan/zulip,christi3k/zulip,vaidap/zulip,kou/zulip,j831/zulip,verma-varsha/zulip,blaze225/zulip,hackerkid/zulip,vabs22/zulip,amanharitsh123/zulip,timabbott/zulip,kou/zulip,andersk/zulip,dhcrzf/zulip,Galexrt/zulip,Diptanshu8/zulip,synicalsyntax/zulip,cosmicAsymmetry/zulip,PhilSk/zulip,ryanbackman/zulip,rishig/zulip,cosmicAsymmetry/zulip,aakash-cr7/zulip,andersk/zulip,punchagan/zulip,vabs22/zulip,rht/zulip,brockwhittaker/zulip,vaidap/zulip,brainwane/zulip,Galexrt/zulip,mahim97/zulip,blaze225/zulip,amyliu345/zulip,sharmaeklavya2/zulip,dattatreya303/zulip,amanharitsh123/zulip,JPJPJPOPOP/zulip,Galexrt/zulip,AZtheAsian/zulip,zulip/zulip,isht3/zulip,AZtheAsian/zulip,synicalsyntax/zulip,shubhamdhama/zulip,rht/zulip,niftynei/zulip,amyliu345/zulip,rishig/zulip,blaze225/zulip,isht3/zulip,ryanbackman/zulip,vabs22/zulip,jackrzhang/zulip,blaze225/zulip,JPJPJPOPOP/zulip,dattatreya303/zulip,timabbott/zulip,punchagan/zulip,sonali0901/zulip,dattatreya303/zulip,rht/zulip,kou/zulip,dhcrzf/zulip,synicalsyntax/zulip,brainwane/zulip,andersk/zulip,souravbadami/zulip,isht3/zulip,hackerkid/zulip,punchagan/zulip,shubhamdhama/zulip,vabs22/zulip,PhilSk/zulip,christi3k/zulip,brockwhittaker/zulip,rht/zulip,samatdav/zulip,Diptanshu8/zulip,sharmaeklavya2/zulip,amyliu345/zulip,dawran6/zulip,tommyip/zulip,vabs22/zulip,dhcrzf/zulip,sonali0901/zulip,verma-varsha/zulip,SmartPeople/zulip,j831/zulip,susansls/zulip,brainwane/zulip,shubhamdhama/zulip,zulip/zulip,timabbott/zulip,Diptanshu8/zulip,zulip/zulip,blaze225/zulip,samatdav/zulip,mahim97/zulip,timabbott/zulip,sonali0901/zulip,amyliu345/zulip,PhilSk/zulip,SmartPeople/zulip,dawran6/zulip,synicalsyntax/zulip,j831/zulip,tommyip/zulip,j831/zulip,souravbadami/zulip,vaidap/zulip,vaidap/zulip,timabbott/zulip,AZtheAsian/zulip,Diptanshu8/zulip,amyliu345/zulip,PhilSk/zulip,Diptanshu8/zulip,kou/zulip,brainwane/zulip,showell/zulip,synicalsyntax/zulip,JPJPJPOPOP/zulip,brockwhittaker/zulip,punchagan/zulip,sonali0901/zulip,samatdav/zulip,rishig/zulip,jrowan/zulip,samatdav/zulip,jphilipsen05/zulip,rht/zulip,mahim97/zulip,jackrzhang/zulip,rht/zulip,j831/zulip,eeshangarg/zulip,aakash-cr7/zulip,amanharitsh123/zulip,sharmaeklavya2/zulip,jphilipsen05/zulip,punchagan/zulip,tommyip/zulip,jphilipsen05/zulip,andersk/zulip,rishig/zulip,jainayush975/zulip,niftynei/zulip,dattatreya303/zulip,brockwhittaker/zulip,dawran6/zulip,niftynei/zulip,susansls/zulip,AZtheAsian/zulip,AZtheAsian/zulip,cosmicAsymmetry/zulip,zulip/zulip,jackrzhang/zulip,dawran6/zulip,tommyip/zulip,Galexrt/zulip,timabbott/zulip,souravbadami/zulip,sharmaeklavya2/zulip,SmartPeople/zulip,shubhamdhama/zulip,vaidap/zulip,samatdav/zulip,brainwane/zulip,jphilipsen05/zulip,hackerkid/zulip,ryanbackman/zulip,hackerkid/zulip,jainayush975/zulip,jphilipsen05/zulip