Added azps4.2.0 to docfx and moniker mapping files (MicrosoftDocs#1447)

Author: mikefrobbins

docfx.json

@@ -26,6 +26,9 @@
             { "files": ["**/*.yml", "**/*.md"], "src": "azps-3.8.0", "version": "azps-3.8.0", "exclude": ["docs-conceptual/**"], "dest": "module" },
             { "files": ["**/*.yml", "**/*.md"], "src": "docs-conceptual/azps-3.8.0", "version": "azps-3.8.0", "dest": "azure" },
 
+            { "files": ["**/*.yml", "**/*.md"], "src": "azps-4.2.0", "version": "azps-4.2.0", "exclude": ["docs-conceptual/**"], "dest": "module" },
+            { "files": ["**/*.yml", "**/*.md"], "src": "docs-conceptual/azps-4.2.0", "version": "azps-4.2.0", "dest": "azure" },
+
             { "files": ["**/*.yml", "**/*.md"], "src": "azps-4.3.0", "version": "azps-4.3.0", "exclude": ["docs-conceptual/**"], "dest": "module" },
             { "files": ["**/*.yml", "**/*.md"], "src": "docs-conceptual/azps-4.3.0", "version": "azps-4.3.0", "dest": "azure" },
 
@@ -112,6 +115,7 @@
             { "files": ["media/**"], "version": "azps-1.8.0" },
             { "files": ["media/**"], "version": "azps-2.8.0" },
             { "files": ["media/**"], "version": "azps-3.8.0" },
+            { "files": ["media/**"], "version": "azps-4.2.0" },
             { "files": ["media/**"], "version": "azps-4.3.0" },
             { "files": ["media/**"], "version": "azps-0.10.0" }
         ],
@@ -124,6 +128,7 @@
             "azps-1.8.0": { "dest": "azps-1.8.0" },
             "azps-2.8.0": { "dest": "azps-2.8.0" },
             "azps-3.8.0": { "dest": "azps-3.8.0" },
+            "azps-4.2.0": { "dest": "azps-4.2.0" },
             "azps-4.3.0": { "dest": "azps-4.3.0" },
             "azps-0.10.0": { "dest": "azps-0.10.0" },
             "azuresmps-4.0.0": { "dest": "azuresmps-4.0.0" },
@@ -278,6 +283,7 @@
                 "azps-1.8.0/**/*.md": "04/16/2019",
                 "azps-2.8.0/**/*.md": "10/14/2019",
                 "azps-3.8.0/**/*.md": "4/20/2020",
+                "azps-4.2.0/**/*.md": "6/2/2020",
                 "azps-4.3.0/**/*.md": "6/19/2020",
                 "azps-0.10.0/**/*.md": "4/14/2020",
                 "azuresmps-4.0.0/**/*.md": "09/11/2018"
@@ -290,6 +296,7 @@
                 "azps-1.8.0/**/*": "None",
                 "azps-2.8.0/**/*": "None",
                 "azps-3.8.0/**/*": "None",
+                "azps-4.2.0/**/*": "None",
                 "azps-4.3.0/**/*": "None",
                 "azps-0.10.0/**/*": "None",
                 "azuresmps-4.0.0/**/*": "None",