Update to dnd 0.98 Core with some fixes

Updated to 0.98 core for 0.7.x compatability (untested)

Class Skills are pulling in automatically on class item drop to character sheet.

TODO: Expand automated skill drop for Archetypes

KNOWN ISSUE: init.value is being converted to a string causing some NaN errors on the html.  Initiative was changed to a number instead of a string in 0.98 likely some place is assuming it is still a string.  I had to use Number() on the value because it was forcing other vales to be a string because the value is "".  Maybe someone can fix this

templates/items/power.html

@@ -68,6 +68,23 @@
                 </select>
             </div>
 
+            {{!-- Preparation Mode --}}
+            <div class="form-group input-select">
+                <label>{{ localize "SW5E.PowerPreparationMode" }}</label>
+                <div class="form-fields">
+                    <label class="checkbox prepared">
+                        {{ localize "SW5E.PowerPrepared" }} <input type="checkbox" name="data.preparation.prepared" {{checked data.preparation.prepared}}/>
+                    </label>
+                    <select name="data.preparation.mode">
+                        {{#select data.preparation.mode}}
+                        <option value=""></option>
+                        {{#each config.powerPreparationModes as |name key|}}
+                        <option value="{{key}}">{{name}}</option>
+                        {{/each}}
+                        {{/select}}
+                    </select>
+                </div>
+            </div>
             {{!-- Concentration Mode --}}
             <div class="form-group input-select">
                 <label>{{ localize "SW5E.PowerConcentrationMode" }}</label>