Added Litre/min and milliLitre/min in Flow (#12282)

units: Litre/min and milliLitre/min in Flow

public/app/core/utils/kbn.ts

@@ -582,6 +582,8 @@ kbn.valueFormats.flowcms = kbn.formatBuilders.fixedUnit('cms');
 kbn.valueFormats.flowcfs = kbn.formatBuilders.fixedUnit('cfs');
 kbn.valueFormats.flowcfm = kbn.formatBuilders.fixedUnit('cfm');
 kbn.valueFormats.litreh = kbn.formatBuilders.fixedUnit('l/h');
+kbn.valueFormats.flowlpm = kbn.formatBuilders.decimalSIPrefix('L');
+kbn.valueFormats.flowmlpm = kbn.formatBuilders.decimalSIPrefix('L', -1);
 
 // Angle
 kbn.valueFormats.degree = kbn.formatBuilders.fixedUnit('°');
@@ -1075,6 +1077,8 @@ kbn.getUnitFormats = function() {
         { text: 'Cubic feet/sec (cfs)', value: 'flowcfs' },
         { text: 'Cubic feet/min (cfm)', value: 'flowcfm' },
         { text: 'Litre/hour', value: 'litreh' },
+        { text: 'Litre/min (l/min)', value: 'flowlpm' },
+        { text: 'milliLitre/min (mL/min)', value: 'flowmlpm' },
       ],
     },
     {