Add libmpdclient (#537)

* Add libmpdclient

references termux/termux-packages/#536

* libmpdclient: fix source url

* libmpdclient: set maintainer to @mklein994

packages/libmpdclient/build.sh

@@ -0,0 +1,11 @@
+pkgname=libmpdclient
+TERMUX_PKG_HOMEPAGE=http://www.musicpd.org/libs/libmpdclient/
+TERMUX_PKG_DESCRIPTION="Asynchronous API library for interfacing MPD in the C, C++ & Objective C languages"
+TERMUX_PKG_MAINTAINER="Matthew Klein @mklein994"
+TERMUX_PKG_DEPENDS=""
+_MAIN_VERSION=2
+_PATCH_VERSION=10
+TERMUX_PKG_VERSION=${_MAIN_VERSION}.${_PATCH_VERSION}
+TERMUX_PKG_SRCURL=https://www.musicpd.org/download/${pkgname}/${_MAIN_VERSION}/${pkgname}-${_MAIN_VERSION}.${_PATCH_VERSION}.tar.xz
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--disable-documentation"
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" --with-default-socket=${TERMUX_PREFIX}/var/run/mpd/socket"