feat: add gmake.bsd project files for FreeBSD builds with premake5 location rule

Add new GNU Make workspace and project makefiles under projects/gmake.bsd/ directory, supporting release_64bit, release_32bit, debug_64bit, and debug_32bit configurations for the wren_cli target. Update premake5.lua to route BSD system builds to the new gmake.bsd location instead of the default gmake directory.

projects/gmake.bsd/Makefile

@@ -0,0 +1,56 @@
+# Alternative GNU Make workspace makefile autogenerated by Premake
+
+ifndef config
+  config=release_64bit
+endif
+
+ifndef verbose
+  SILENT = @
+endif
+
+ifeq ($(config),release_64bit)
+  wren_cli_config = release_64bit
+
+else ifeq ($(config),release_32bit)
+  wren_cli_config = release_32bit
+
+else ifeq ($(config),debug_64bit)
+  wren_cli_config = debug_64bit
+
+else ifeq ($(config),debug_32bit)
+  wren_cli_config = debug_32bit
+
+else
+  $(error "invalid configuration $(config)")
+endif
+
+PROJECTS := wren_cli
+
+.PHONY: all clean help $(PROJECTS) 
+
+all: $(PROJECTS)
+
+wren_cli:
+ifneq (,$(wren_cli_config))
+	@echo "==== Building wren_cli ($(wren_cli_config)) ===="
+	@${MAKE} --no-print-directory -C . -f wren_cli.make config=$(wren_cli_config)
+endif
+
+clean:
+	@${MAKE} --no-print-directory -C . -f wren_cli.make clean
+
+help:
+	@echo "Usage: make [config=name] [target]"
+	@echo ""
+	@echo "CONFIGURATIONS:"
+	@echo "  release_64bit"
+	@echo "  release_32bit"
+	@echo "  debug_64bit"
+	@echo "  debug_32bit"
+	@echo ""
+	@echo "TARGETS:"
+	@echo "   all (default)"
+	@echo "   clean"
+	@echo "   wren_cli"
+	@echo ""
+	@echo "For more information, see https://github.com/premake/premake-core/wiki"