Add all data integrity contexts to contextMap.

Author: aljones15

vc-generator/contexts.js

@@ -10,6 +10,11 @@ import didCtx from '@digitalcredentials/did-context';
 import multikeyCtx from '@digitalbazaar/multikey-context';
 
 const contextMap = new Map(credentialsContexts);
+addContexts({
+  contexts: dataIntegrityCtx.contexts,
+  map: contextMap
+});
+
 //FIXME this really should be done in separate documentLoaders
 //so that other tests do not get the modified context
 //FIXME this also should be a structuredClone of the v2 context