libmount: Make the libblkid and libmount libraries separate components

Adding the eudev package requires `libblkid` only.
Adding a separate libblkid recipe hasn't gotten anywhere yet.
This PR uses an alternative approach and separates the libraries.
Each library is split into its own component.

recipes/libmount/all/conanfile.py

@@ -72,7 +72,11 @@ def package(self):
         rm(self, "*.la", os.path.join(self.package_folder, "lib"))
 
     def package_info(self):
-        self.cpp_info.libs = ["mount", "blkid"]
-        self.cpp_info.system_libs = ["rt"]
-        self.cpp_info.includedirs.append(os.path.join("include", "libmount"))
-        self.cpp_info.set_property("pkg_config_name", "mount")
+        self.cpp_info.components["libblkid"].libs = ["blkid"]
+        self.cpp_info.components["libblkid"].set_property("pkg_config_name", "blkid")
+
+        self.cpp_info.components["libmount"].libs = ["mount"]
+        self.cpp_info.components["libmount"].system_libs = ["rt"]
+        self.cpp_info.components["libmount"].includedirs.append(os.path.join("include", "libmount"))
+        self.cpp_info.components["libmount"].set_property("pkg_config_name", "mount")
+        self.cpp_info.components["libmount"].requires = ["libblkid"]