[NCL-5014] Fix closing of Timer threads in Indy client
[NCL-5014] Fix closing of Timer threads in Indy client

matedo1/pnc,rnc/pnc,alexcreasy/pnc,pkocandr/pnc,project-ncl/pnc,thescouser89/pnc,alexcreasy/pnc,matedo1/pnc,matejonnet/pnc,matedo1/pnc,alexcreasy/pnc