Add interviewer to additional item types

Add `interviewer` to articles and broadcast items. Usage examples:

- Book section: <https://www.zotero.org/groups/2205533/items/EPKB4ZW4>
- Journal article: <https://www.zotero.org/groups/2205533/items/CCKGR73D>, <https://www.zotero.org/groups/2205533/items/HLZX7VBX>
- Magazine article: <https://www.zotero.org/groups/2205533/items/MJKW9H9C>, <https://www.zotero.org/groups/2205533/items/XBE2CNSW>
- Radio broadcast: <https://www.zotero.org/groups/2205533/items/8NUJFXJ7>
- Web page: <https://www.zotero.org/groups/2205533/items/IL27VFPX>

Author: adunning

schema.json

@@ -550,6 +550,9 @@
 				{
 					"creatorType": "bookAuthor"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "translator"
 				},
@@ -1687,6 +1690,9 @@
 				{
 					"creatorType": "editor"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "translator"
 				},
@@ -1845,6 +1851,9 @@
 				{
 					"creatorType": "contributor"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "translator"
 				},
@@ -2100,6 +2109,9 @@
 				{
 					"creatorType": "contributor"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "translator"
 				},
@@ -2269,6 +2281,9 @@
 				{
 					"creatorType": "guest"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "producer"
 				},
@@ -2539,6 +2554,9 @@
 				{
 					"creatorType": "guest"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "producer"
 				},
@@ -3018,6 +3036,9 @@
 				{
 					"creatorType": "guest"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "narrator"
 				},
@@ -3200,6 +3221,9 @@
 				{
 					"creatorType": "contributor"
 				},
+				{
+					"creatorType": "interviewer"
+				},
 				{
 					"creatorType": "translator"
 				}
@@ -13642,4 +13666,4 @@
 			}
 		}
 	}
-}
+}