[5422] List of supported commands added.

tools/cmd-docgen/cmds-list

+build-report
+cache-clear
+cache-get
+cache-insert
+cache-load
+cache-remove
+cache-write
+config-get
+config-reload
+config-set
+config-test
+config-write
+dhcp-disable
+dhcp-enable
+ha-heartbeat
+ha-scopes
+ha-sync
+lease4-add
+lease4-del
+lease4-get
+lease4-get-all
+lease4-update
+lease4-wipe
+lease6-add
+lease6-del
+lease6-get
+lease6-get-all
+lease6-update
+lease6-wipe
+leases-reclaim
+libreload
+list-commands
+network4-add
+network4-del
+network4-get
+network4-list
+network4-subnet-add
+network4-subnet-del
+network6-add
+network6-del
+network6-get
+network6-list
+network6-subnet-add
+network6-subnet-del
+reservation-add
+reservation-del
+reservation-get
+shutdown
+stat-lease4-get
+stat-lease6-get
+statistic-get
+statistic-get-all
+statistic-remove
+statistic-remove-all
+statistic-reset
+statistic-reset-all
+subnet4-add
+subnet4-del
+subnet4-get
+subnet4-list
+subnet6-add
+subnet6-del
+subnet6-get
+subnet6-list
+version-get