feat: Begins equipment measurement form

Sources/Styleguide/TextField+Precision.swift

@@ -15,5 +15,19 @@ extension TextField where Label == Text {
       prompt: prompt
     )
   }
+  
+  public init<S: StringProtocol>(
+    _ titleKey: S,
+    value: Binding<Double?>,
+    fractionLength: Int,
+    prompt: Text? = nil
+  ) {
+    self.init(
+      titleKey,
+      value: value,
+      format: .number.precision(.fractionLength(fractionLength)),
+      prompt: prompt
+    )
+  }
 
 }