adding the two missing runtime dependencies caused by the optional dependency on rxjs

Author: robertpatrick

THIRD_PARTY_LICENSES.txt

@@ -1578,6 +1578,9 @@ The following packages are licensed under Apache License, Version 2.0:
 [email protected]
 Copyright 2017 Lovell Fuller
 
+[email protected]
+Copyright (c) 2015-2018 Google, Inc., Netflix, Inc., Microsoft Corp. and contributors
+
 [email protected]
 No Copyright
 
@@ -2066,6 +2069,28 @@ POSSIBILITY OF SUCH DAMAGE.
 --------------------------------------------------------------------------------
 
 
+The following packages are licensed under BSD Zero Clause License:
+
+[email protected]
+Copyright (c) Microsoft Corporation.
+
+
+BSD Zero Clause License
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+--------------------------------------------------------------------------------
+
+
 The following packages are licensed under The Universal Permissive License (UPL), Version 1.0:
 
 @oracle/[email protected]