nayuos-chromium-policy: new ebuild to set up custom policies for chromium

The current policies set the default search engine to DuckDuckGo

app-misc/nayuos-chromium-policy/files/nayuos_policy.json

+{
+  "DefaultSearchProviderName": "DuckDuckGo",
+  "DefaultSearchProviderSearchURL": "https://duckduckgo.com/?q={searchTerms}",
+  "DefaultSearchProviderEncodings": "UTF-8",
+}

app-misc/nayuos-chromium-policy/nayuos-chromium-policy-1.0.ebuild

+EAPI="4"
+
+DESCRIPTION="Set up NayuOS-specific policies for chromium"
+HOMEPAGE="https://www.nayuos.com/"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="*"
+IUSE=""
+
+src_install()
+{
+  dodir /etc/chromium
+  dodir /etc/chromium/policies
+  dodir /etc/chromium/policies/managed
+  dodir /etc/chromium/policies/recommended
+
+  insinto /etc/chromium/policies/recommended
+  doins files/nayuos_policy.json
+}