meson: Fix local build

Provide missing dependencies and necessary wrap files for the local
meson build.

Tested:
"meson setup build && cd build && meson compile" finishes successfully.

Change-Id: Ic5fc03326b12fd25cd041f53266fbdd9412e10bc
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
diff --git a/subprojects/nlohmann_json.wrap b/subprojects/nlohmann_json.wrap
new file mode 100644
index 0000000..3745380
--- /dev/null
+++ b/subprojects/nlohmann_json.wrap
@@ -0,0 +1,6 @@
+[wrap-git]
+revision = HEAD
+url = https://github.com/nlohmann/json.git
+
+[provide]
+nlohmann_json = nlohmann_json_dep