Add step="any" to inputs of Saturation % in FE so doesn't give error when input decimal

Author: kelvinburke

client/source/js/modules/costfunction/cost-function.html

@@ -148,6 +148,7 @@ <h3>Define cost function
                           ng-model="row[2]"
                           min="0"
                           max="100"
+                          step="any"
                           type="number"
                           style="width: 50px"
                           class="txbox __inline"
@@ -159,6 +160,7 @@ <h3>Define cost function
                           ng-model="row[3]"
                           min="0"
                           max="100"
+                          step="any"
                           type="number"
                           style="width: 50px"
                           class="txbox __inline"