Add in rss parsing library and option to use it instead of the API

yarn.lock

@@ -4093,7 +4093,7 @@ enquirer@^2.3.5:
   dependencies:
     ansi-colors "^4.1.1"
 
-entities@^2.0.0:
+entities@^2.0.0, entities@^2.0.3:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/entities/-/entities-2.2.0.tgz#098dc90ebb83d8dffa089d55256b351d34c4da55"
   integrity sha512-p92if5Nz619I0w+akJrLZH0MX0Pb5DX39XOwQTtXSdQQOaYH03S1uIQp4mhOZtAXrxq4ViO67YTiLBo2638o9A==
@@ -8595,6 +8595,14 @@ router@~1.3.6:
     setprototypeof "1.2.0"
     utils-merge "1.0.1"
 
+rss-parser@3.13.0:
+  version "3.13.0"
+  resolved "https://registry.yarnpkg.com/rss-parser/-/rss-parser-3.13.0.tgz#f1f83b0a85166b8310ec531da6fbaa53ff0f50f0"
+  integrity sha512-7jWUBV5yGN3rqMMj7CZufl/291QAhvrrGpDNE4k/02ZchL0npisiYYqULF71jCEKoIiHvK/Q2e6IkDwPziT7+w==
+  dependencies:
+    entities "^2.0.3"
+    xml2js "^0.5.0"
+
 rsup-progress@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/rsup-progress/-/rsup-progress-3.0.0.tgz#e5eab5c1e75794cc288d567aa765b50faaf0cc89"
@@ -10562,6 +10570,19 @@ xml2js@0.4.19:
     sax ">=0.6.0"
     xmlbuilder "~9.0.1"
 
+xml2js@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/xml2js/-/xml2js-0.5.0.tgz#d9440631fbb2ed800203fad106f2724f62c493b7"
+  integrity sha512-drPFnkQJik/O+uPKpqSgr22mpuFHqKdbS835iAQrUC73L2F5WkboIRd63ai/2Yg6I1jzifPFKH2NTK+cfglkIA==
+  dependencies:
+    sax ">=0.6.0"
+    xmlbuilder "~11.0.0"
+
+xmlbuilder@~11.0.0:
+  version "11.0.1"
+  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-11.0.1.tgz#be9bae1c8a046e76b31127726347d0ad7002beb3"
+  integrity sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA==
+
 xmlbuilder@~9.0.1:
   version "9.0.7"
   resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"