meson: simplify dependencies

Leverage wrapfile `[provide]` directives to simplify the dependency
searching in the meson.build.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ia27d543a9c13b2c6973ab394ed88cd12d93e88a8
diff --git a/subprojects/CLI11.wrap b/subprojects/CLI11.wrap
index e695a9d..2e5a95b 100644
--- a/subprojects/CLI11.wrap
+++ b/subprojects/CLI11.wrap
@@ -1,3 +1,6 @@
 [wrap-git]
 url = https://github.com/CLIUtils/CLI11.git
 revision = HEAD
+
+[provide]
+CLI11 = CLI11_dep