Add extra dev tools, as suggested in #2965 by @mikejgray

.gitignore

@@ -59,3 +59,10 @@ docs/build
 
 # Obsidian 
 .obsidian
+
+# Virtual environments 
+.venv/
+.env/
+
+# Testing folder 
+.test_game_dir

Makefile

@@ -8,6 +8,7 @@ TESTS ?= evennia
 default:
 	@echo " Usage: "
 	@echo "  make install - install evennia (recommended to activate virtualenv first)"
+	@echo "  make installextra - install evennia with extra-requirements (activate virtualenv first)"
 	@echo "  make fmt/format - run the black autoformatter on the source code"
 	@echo "  make lint - run black in --check mode"
 	@echo "  make test - run evennia test suite with all default values."
@@ -17,6 +18,10 @@ default:
 install:
 	pip install -e .
 
+installextra:
+	pip install -e .
+	pip install -r requirements_extra.txt
+
 format:
 	black $(BLACK_FORMAT_CONFIGS) evennia