Fixed issue in Elfsquad Data connector (microsoft#823)

* Added Elfsquad Data Connector

* Updated Elfsquad Data API definition

* Added publisher and stackowner properties

* Moved Elfsquad Data to certified-connectors

* Updated icon brand color

* Modified functions schema path

* Added select parameter

Co-authored-by: Johannes Heesterman <johannes@elfsquad.io>

Author: johannesheesterman

certified-connectors/Elfsquad Data/apiDefinition.swagger.json

@@ -152,7 +152,7 @@
         "x-ms-visibility": "internal"
       }
     },
-    "/data/1/$functions/{function_path}/$schema": {
+    "/data/1/$functions/$schema/{function_path}": {
       "get": {
         "responses": {
           "default": {
@@ -233,6 +233,9 @@
           {
             "$ref": "#/parameters/filter"
           },
+          {
+            "$ref": "#/parameters/select"
+          },
           {
             "$ref": "#/parameters/expand"
           },
@@ -456,6 +459,13 @@
       "x-ms-summary": "Filter items by property values",
       "type": "string"
     },
+    "select": {
+      "in": "query",
+      "name": "$select",
+      "description": "Select properties",
+      "x-ms-summary": "Comma-seperated property names you want to select",
+      "type": "string"
+    },
     "expand": {
       "in": "query",
       "name": "$expand",