Add multimanifest for R 4.0.5 (#10284)

* Add multimanifest for R 4.0.5

* identifier uppercase

* use upper P in RProject

* Rename file

manifests/r/RProject/R/4.0.5/RProject.R.locale.en-US.yaml

@@ -0,0 +1,19 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.defaultlocale.1.0.0.schema.json
+PackageIdentifier: RProject.R
+PackageVersion: 4.0.5
+PackageLocale: en-US
+Publisher: RProject
+PublisherUrl: https://r-project.org/
+PackageName: RProject R
+PackageUrl: https://cran.r-project.org/
+License: GPLv2
+LicenseUrl: https://www.r-project.org/COPYING
+ShortDescription: The base binary distribution of R statistics language.
+Moniker: R
+Tags:
+  - r
+  - datascience
+ManifestType: defaultLocale
+ManifestVersion: 1.0.0
+
+