setup script improvements, automatically clone xmrig-hac and build for multiple platforms

libs/libsodium-1.0.18/dist-build/Makefile.am

@@ -0,0 +1,16 @@
+
+EXTRA_DIST = \
+	android-build.sh \
+	android-arm.sh \
+	android-armv7-a.sh \
+	android-armv8-a.sh \
+	android-mips32.sh \
+	android-mips64.sh \
+	android-x86.sh \
+	android-x86_64.sh \
+	emscripten.sh \
+	ios.sh \
+	msys2-win32.sh \
+	msys2-win64.sh \
+	watchos.sh \
+	wasm32-wasi.sh