Add Makefile based build process

This commit updates the submodules to versions that contain a Makefile
to automate their builds. A main Makefile has been added to orchestrate
the builds.

Makefile

@@ -0,0 +1,24 @@
+SUBDIRS = cacert_resources oidc_app oidc_idp oidc_registration
+
+all: oidc_app/demo-app oidc_idp/cacert-idp oidc_registration/cacert-oidc-registration
+
+oidc_app/demo-app: force_look
+	echo building demo app : $(MAKE) $(MFLAGS)
+	cd oidc_app ; $(MAKE) $(MFLAGS)
+
+oidc_idp/cacert-idp: force_look
+	echo building CAcert IDP : $(MAKE) $(MFLAGS)
+	cd oidc_idp ; $(MAKE) $(MFLAGS)
+
+oidc_registration/cacert-oidc-registration: force_look
+	echo building CAcert client registration: $(MAKE) $(MFLAGS)
+	cd oidc_registration ; $(MAKE) $(MFLAGS)
+
+clean:
+	echo cleaning up in .
+	-for d in $(SUBDIRS) ; do ( cd $$d; $(MAKE) clean ); done
+
+force_look:
+	true
+
+.PHONY: all clean

cacert_resources

@@ -1 +1 @@
-Subproject commit 5cbcbefac6f05fa6537b6a925cc29118a5ecc571
+Subproject commit ad14916ba5ca4e89b3f97b7d22be0321d35ae4f9

oidc_app

@@ -1 +1 @@
-Subproject commit c69e8d29805af1ad9abab2e6318f3b1c3b45a557
+Subproject commit 294f2372e1c6bcb65a614e498ff127d3e032345c

oidc_idp

@@ -1 +1 @@
-Subproject commit 26447f99c92e346ca5823f84db8822e1988f726d
+Subproject commit 2affaa21506db92731685bc3ab67679604147243

oidc_registration

@@ -1 +1 @@
-Subproject commit 0c88fb544734d07a2d61e87b9084ee6fdc274cff
+Subproject commit be9006546dbad89aef476d2096c91b14fad2a3f4