Start moving fitting to UI

Re #12734

Code/Mantid/MantidQt/CustomInterfaces/inc/MantidQtCustomInterfaces/Indirect/JumpFit.ui

@@ -53,22 +53,22 @@
       <widget class="QComboBox" name="cbFunction">
        <item>
         <property name="text">
-         <string>Chudley-Elliott</string>
+         <string>ChudleyElliot</string>
         </property>
        </item>
        <item>
         <property name="text">
-         <string>Hall-Ross</string>
+         <string>HallRoss</string>
         </property>
        </item>
        <item>
         <property name="text">
-         <string>Fick Diffusion</string>
+         <string>FickDiffusion</string>
         </property>
        </item>
        <item>
         <property name="text">
-         <string>Teixeira Water</string>
+         <string>TeixeiraWater</string>
         </property>
        </item>
       </widget>