Cache candidates per service and add option to flush
Cache candidates per service and add option to flush

gvmtool/gvm-cli,skpal/sdkman-cli,sdkman/sdkman-cli,GsusRecovery/sdkman-cli,jbovet/gvm,shanman190/sdkman-cli,nobeans/gvm-cli,busches/gvm-cli,DealerDotCom/gvm-cli,DealerDotCom/gvm-cli,skpal/sdkman-cli,nobeans/gvm-cli,GsusRecovery/sdkman-cli