Allow to specify type on MatIconButton. Fixes #315

- Material icon button changes
- set type in Material autocomplete

Thanks!

Author: peterblazejewicz

src/MatBlazor/Components/MatAutocompleteList/MatAutocompleteList.razor

@@ -9,7 +9,7 @@
     @if (IsShowingClearButton)
     {
         <div class="mat-autocomplete-list-clearbutton">
-            <MatIconButton Icon="clear" OnMouseDown="@ClearText"></MatIconButton>
+            <MatIconButton Type="button" Icon="clear" OnMouseDown="@ClearText"></MatIconButton>
         </div>
     }
     @if (Items != null && IsOpened)

src/MatBlazor/Components/MatIconButton/BaseMatIconButton.cs

@@ -48,6 +48,13 @@ public bool Toggled
         [Parameter]
         public EventCallback<bool> ToggledChanged { get; set; }
 
+        /// <summary>
+        /// The default behavior of the button. Possible values are:
+        /// "button", "reset", "submit"
+        /// </summary>
+        [Parameter]
+        public string Type { get; set; }
+
         /// <summary>
         /// Navigate to this url when clicked.
         /// </summary>

src/MatBlazor/Components/MatIconButton/MatIconButton.razor

@@ -1,7 +1,7 @@
 @namespace MatBlazor
 @inherits BaseMatIconButton
 
-<button type="button" class="@ClassMapper.AsString()" style="@StyleMapper.AsString()" @ref="Ref"  disabled=@Disabled @onclick="OnClickHandler" @onclick:stopPropagation=@OnClickStopPropagation @onmousedown="OnMouseDown" href=@Link @attributes="Attributes" Id="@Id">
+<button type=@Type class="@ClassMapper.AsString()" style="@StyleMapper.AsString()" @ref="Ref"  disabled=@Disabled @onclick="OnClickHandler" @onclick:stopPropagation=@OnClickStopPropagation @onmousedown="OnMouseDown" href=@Link @attributes="Attributes" Id="@Id">
     @if (Icon != null)
     {
         @if (ToggleIcon != null && Toggled)