Refactor Project API to reflect changes upstream

projectile-project-root no longer returns `default-directory` if not in
a project (it returns nil). As such, doom-project-* functions (and their
uses) have been refactored.

+ doom-project-p & doom-project-root are aliases for
  projectile-project-p & projectile-project-root.
+ doom-project-{p,root,name,expand} now has a DIR argument (for
  consistency, since projectile-project-name and
  projectile-project-expand do not).
+ The nocache parameter is no longer necessary, as projectile's caching
  behavior is now more sane.
+ Removed some projectile advice/hacks that are no longer necessary.
+ Updated unit tests

modules/tools/make/autoload.el

@@ -7,7 +7,7 @@
   "Run a make task in the current project. If multiple makefiles are available,
 you'll be prompted to select one."
   (interactive)
-  (if (doom-project-p 'nocache)
+  (if (doom-project-p)
       (makefile-executor-execute-project-target)
     (let ((makefile (cl-loop with buffer-file = (or buffer-file-name default-directory)
                              for file in (list "Makefile" "makefile")