(feat!)capture: unify template variables

Instead of using various capture template variables, like
org-roam-dailies-capture-templates or org-roam-capture-ref-templates,
just use org-roam-capture-templates for everything.

From now on, each individual template will able to optionally specify a
more detailed context for which they're dedicated for, using :kind and
:action properties. Both of them accept either, a symbol or a list of
symbols.

If it's a list, then it can optionally start with :not symbol to
indicate inverse logic, otherwise it will act akin to memq. If it's a
symbol, then it will work akin to eq, but with support for special 'any
value, which indicates that it will work in any contexts; 'any can be
also used inside of the list based values.

Org-roam and the built-in extension will provide the following contexts:
- :action {capture,goto,any}
- :kind {normal,daily,protocol,any}
but third party extensions / users can easily extend them for their own
needs.

If :action isn't specified it will implicitly default to 'capture, while
:kind will default to 'normal contexts.

BREAKING CHANGE: org-roam-dailies-capture-templates and
org-roam-capture-ref-templates are now removed in the favor of unified
approach.

org-roam-utils.el

@@ -105,6 +105,29 @@ If FILE, set `default-directory' to FILE's directory and insert its contents."
              (setq-local default-directory (file-name-directory ,file)))
            ,@body)))))
 
+;;; Processing options
+(defun org-roam--valid-option-p (option choice)
+  "Return t if OPTION satisfies CHOICE, else nil.
+OPTION is a symbol, while CHOICE is either, a symbol or a list of
+symbols that can optionally start with `:not' keyword.
+
+If CHOICE is a list that indicates negation, then the function
+will return t if OPTION isn't in the list. Otherwise it will
+return t is OPTION is present in the CHOICE.
+
+When CHOICE is a symbol, it will behave like `eq', except of
+special 'any value, in which case it will always return t,
+independently OPTION's value.
+
+CHOICE as a list can too contain 'any, in which case any OPTION
+value will be considered as part of the CHOICE, with respect to
+negation."
+  (let* ((choices (-list choice))
+         (intersection (-intersection (list option 'any) choices))
+         (negation (eq :not (car choices))))
+    (or (and intersection (not negation))
+        (and (not intersection) negation))))
+
 ;;; Formatting
 (defun org-roam-format-template (template replacer)
   "Format TEMPLATE with the function REPLACER.