util/hugo: Add framework to build www.coreboot.org/Documentation

www.coreboot.org/Documentation is now built with hugo (www.gohugo.io)
based on files in this repo's /Documentation directory.

Also clarify that new additions to Documentation are under CC-BY 4.0 terms.

Change-Id: I000e15b29a182bb88b40de3d0178bf8cc54ba8af
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: https://review.coreboot.org/19881
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>

util/hugo/config.toml

@@ -0,0 +1,48 @@
+baseurl = "https://www.coreboot.org/Documentation/"
+languageCode = "en-us"
+title = "coreboot documentation"
+theme = "hugo-material-docs"
+metadataformat = "yaml"
+canonifyurls = true
+
+[params]
+  provider = "Coreboot"
+  repo_url = "https://review.coreboot.org/cgit/coreboot.git"
+  logo = "images/coreboot.svg"
+  favicon = "images/favicon.png"
+  copyright = "coreboot™ contributors, licensed under the terms described in https://creativecommons.org/licenses/by/4.0/"
+  custom_css = [
+    "css/coreboot.css"
+  ]
+
+[social]
+	twitter= "coreboot_org"
+	github = "coreboot/coreboot"
+
+[params.palette]
+	primary = "blue"
+	accent  = "blue-grey"
+
+[params.font]
+	text = "Open Sans"
+	code = "Inconsolata"
+
+[[menu.main]]
+        name   = "Gerrit guidelines"
+        url    = "gerrit_guidelines/"
+        weight = 10
+
+[[menu.main]]
+        name   = "On timestamps"
+        url    = "timestamp/"
+        weight = 20
+
+[[menu.main]]
+        name   = "Intel documentation"
+        url    = "intel/index.html"
+        weight = 30
+
+[[menu.main]]
+        name   = "AMD S3"
+        url    = "AMD-S3.txt"
+        weight = 40