pve: add pve-start.sh to start VM/CT by VMID

pve/pve-start.sh

+#!/bin/sh
+# Start VM or CT by VMID
+# Usage: pve-start.sh VMID
+
+set -e
+
+MYDIR=$(dirname "$0")
+. "$MYDIR/functions"
+
+VMID="$1"
+
+if [ -z "$VMID" ] ; then
+    echo "Usage: $(basename "$0") VMID" >&2
+    echo "Start a VM or CT in the PVE cluster." >&2
+    exit 1
+fi
+
+resolve_vmid "$VMID"
+mgr=$(vm_mgr)
+
+if [ "$RES_STATUS" = "running" ] ; then
+    log "$RES_TYPE $VMID ($RES_NAME) is already running on $RES_NODE"
+    exit 0
+fi
+
+log "Starting $RES_TYPE $VMID ($RES_NAME) on $RES_NODE ..."
+vm_cmd "$mgr" start "$VMID"
+log "Started."