Added PKGBUILD to install magellan as binary

PKGBUILD

@@ -0,0 +1,29 @@
+# Maintainer: David J. Allen <allend@lanl.gov>
+pkgname=magellan
+pkgver=v0.1.5
+pkgrel=1
+pkgdesc="Redfish-based BMC discovery tool written in Go"
+arch=("x86_64")
+url="https://github.com/OpenCHAMI/magellan"
+license=('MIT')
+groups=("openchami")
+provides=('magellan')
+conflicts=('magellan')
+source_x86_64=("${url}/releases/download/v${pkgver}/${pkgname}_Linux_x86_64.tar.gz")
+sha256sums_x86_64=('1bb028d592d5389b519362e6aa7021f27443f0b36471e09ee7f47ab5cb6d4d7f')
+
+# Please refer to the 'USING VCS SOURCES' section of the PKGBUILD man page for
+# a description of each element in the source array.
+
+pkgver() {
+	cd "$srcdir" || exit
+	printf "%s" "$(git describe --tags --abbrev=0)"
+}
+
+package() {
+	cd "$srcdir/" || exit
+
+	# install the binary to /usr/bin
+	mkdir -p "${pkgdir}/usr/bin"
+	install -m755 magellan "${pkgdir}/usr/bin/magellan"
+}