options: introduce OPTION_COMMON_VERSION_WITH_V and version_only()

The man page udevadm(8) have explicitly documented that the option -V is
a short form of --version. Let's not hide the short form in the help
message.

This introduces OPTION_COMMON_VERSION_WITH_V then use it in udevadm,
udevd, and run0.

Alos, this moves print_version() to build.c, and renames it to
version_only(). Now the function is also used in udevd amd test-libudev.

With this change, the -V option is hidden only in dmi_memory_id and
scsi_id. So, this removes the OPTION_COMMON_VERSION_WITH_HIDDEN_V macro
and explicitly list the hidden option in their code.

src/basic/build.c

@@ -280,3 +280,9 @@ int version(void) {
                b ?: systemd_features);
         return 0;
 }
+
+int version_only(void) {
+        /* Used by udev. Dracut relies on the version being a single integer */
+        puts(PROJECT_VERSION_STR);
+        return 0;
+}

src/basic/build.h

@@ -6,3 +6,4 @@
 extern const char* const systemd_features;
 
 int version(void);
+int version_only(void);