Added tag filtering to gallery

<template>

	<div class="galleryDisplay uk-padding uk-padding-remove-right">

	<div class="galleryDisplay uk-padding-remove">

    <nav class="uk-navbar-container" uk-navbar="mode: click">

        <div class="uk-navbar-left uk-padding uk-padding-remove-top uk-padding-remove-bottom">

            <ul class="uk-navbar-nav">

                <li>

                  <a href="#">Filter</a>

                  <div class="uk-navbar-dropdown">

                    <ul class="uk-nav uk-navbar-dropdown-nav">

                      <form class="uk-form-stacked">

                        <div v-for="tag in allTags" :key="tag" class="uk-margin-small">

                          <label><input class="uk-checkbox" type="checkbox" v-bind:id="tag" v-bind:value="tag" v-model="checkedTags" checked> {{ tag }}</label>

                        </div>

                      </form>

                    </ul>

                  </div>

                </li>

            </ul>

        </div>

    </nav>

    <div uk-lightbox="toggle: .lightbox-link">

    <div class="uk-padding uk-padding-remove-top" uk-lightbox="toggle: .lightbox-link">

      <div class="uk-grid-medium uk-padding uk-padding-remove-right uk-grid-match" uk-grid>

        <captureCard 

          v-for="capture in captureList" 

          v-for="capture in filteredCaptures" 

          :key="capture.metadata.id"

          :metadata="capture.metadata"

          :temporary="capture.temporary"

  data: function () {

    return {

      captureList: []

      captureList: [],

      checkedTags: []

    }  

  },

    captureApiUri: function () {

      return this.$store.getters.uri + "/camera/capture"

    },

    orderedcaptureList: function () {

      return _.orderBy(this.captureList, 'metadata_path', 'desc')

    allTags: function () {

      // Return an array of unique tags across all captures

      var tags = [];

      for (var i in this.captureList) {

        var capture = this.captureList[i]

        for (var j in capture.metadata.tags) {

          var tag = capture.metadata.tags[j]

          if (!tags.includes(tag)) {

            tags.push(tag)

          };

        };

      };

      return tags

    },

    filteredCaptures: function () {

      var captures = [];

      for (var i in this.captureList) {

        // Quickly access capture object

        var capture = this.captureList[i];

        // Assume exclusion

        var includeCapture = false;

        // Filter by selected tags

        var tags = capture.metadata.tags;

        let checker = (arr, target) => target.every(v => arr.includes(v));

        // True if all tags match

        includeCapture = checker(tags, this.checkedTags)

        // Add to capture list if matched

        if (includeCapture == true) {

          captures.push(capture)

        }

      };

    return captures

    }

  }