chore: Add raw lib headers dump to easily check method useful comments

Author: benoit.condaminet

.gitignore

@@ -1,3 +1,4 @@
 /.phpunit.cache
 /tests/resources/generated
-/vendor/
+/vendor/
+/lib-headers/

Makefile

@@ -1,6 +1,10 @@
 .PHONY: dump-header
-dump-header:
-	docker-compose up -d --build && docker compose cp php-pdfium:/usr/lib-pdfium/include/pdfium.h ./include/pdfium.h
+dump-header: build
+	docker compose cp php-pdfium:/usr/lib-pdfium/include/pdfium.h ./include/pdfium.h
+
+.PHONY: dump-lib-headers
+dump-lib-headers: build
+	mkdir -p ./lib-headers/pdfium && docker compose cp php-pdfium:/usr/lib-pdfium/include ./lib-headers/pdfium/.
 
 .PHONY: test
 test: