Allow user to create new fields for environment names

Currently only one of them is being created.

js/components/forms/new_project.js

@@ -0,0 +1,46 @@
+import textinput from '../text_input'
+
+export default {
+  name: 'new-project',
+
+  components: {
+    textinput
+  },
+
+  props: {
+    initialData: {
+      type: Object,
+      default: () => ({})
+    }
+  },
+
+  data: function () {
+    const {
+      name,
+      description,
+      environments = ['']
+    } = this.initialData
+
+    return {
+      name,
+      description,
+      environments,
+    }
+  },
+
+  mounted: function () {
+    this.$root.$on('onEnvironmentAdded', this.addEnvironment)
+  },
+
+  methods: {
+    addEnvironment: function (event) {
+      this.environments.push('')
+    },
+
+    removeEnvironment: function (index) {
+      if (this.environments.length > 1) {
+        this.environments.splice(index, 1)
+      }
+    }
+  }
+}