feat: support map application

[phrohdoh]

Similar to #85.

---

Clojure 1.10.3 behavior:

({:k:v}) ;; => Execution error (ArityException) at user/eval1 (REPL:1). Wrong number of args (0) passed to: clojure.lang.PersistentArrayMap
({:k:v} :k) ;; => :v
({:k:v} :x:not-found) ;; => :not-found
({:k:v} :x:not-found:too-many) ;; => Execution error (ArityException) at user/eval1 (REPL:1). Wrong number of args (3) passed to: clojure.lang.PersistentArrayMap
({:k:v} ((fn [] :k))) ;; => :v

bash command to generate above via the clj command-line tool

one-liner:

forsrcin'({:k :v})''({:k :v} :k)''({:k :v} :x :not-found)''({:k :v} :x :not-found :too-many)''({:k :v} ((fn [] :k)))';doprintf"%s ;; => ""$src"; clj -e "(prn $src)";done

in a more human-friendly form:

forsrcin \
'({:k :v})' \
'({:k :v} :k)' \
'({:k :v} :x :not-found)' \
'({:k :v} :x :not-found :too-many)' \
'({:k :v} ((fn [] :k)))' \
;doprintf"%s ;; => ""$src";
clj -e "$src";done

---

ClojureRS prior to this PR:

({:k:v}) ;; => #Condition["Execution Error: clojure.lang.PersistentListMap cannot be cast to clojure.lang.IFn"]
({:k:v} :k) ;; => #Condition["Execution Error: clojure.lang.PersistentListMap cannot be cast to clojure.lang.IFn"]
({:k:v} :x:not-found) ;; => #Condition["Execution Error: clojure.lang.PersistentListMap cannot be cast to clojure.lang.IFn"]
({:k:v} :x:not-found:too-many) ;; => #Condition["Execution Error: clojure.lang.PersistentListMap cannot be cast to clojure.lang.IFn"]
({:k:v} ((fn [] :k))) ;; => #Condition["Execution Error: clojure.lang.PersistentListMap cannot be cast to clojure.lang.IFn"]

ClojureRS with the changes in this PR applied:

({:k:v}) ;; => #Condition["Wrong number of arguments given to function (Given: 0, Expected: [1, 2])"]
({:k:v} :k) ;; => :v
({:k:v} :x:not-found) ;; => nil (todo: should be :not-found see https://github.com/clojure-rs/ClojureRS/issues/86)
({:k:v} :x:not-found:too-many) ;; => #Condition["Wrong number of arguments given to function (Given: 3, Expected: [1, 2])"]
({:k:v} ((fn [] :k))) ;; => :v

bash command to generate above via the ClojureRS REPL

one-liner:

forsrcin'({:k :v})''({:k :v} :k)''({:k :v} :x :not-found)''({:k :v} :x :not-found :too-many)''({:k :v} ((fn [] :k)))';doprintf"%s ;; => ""$src"; cargo run -- -e "$src";done

in a more human-friendly form:

forsrcin \
'({:k :v})' \
'({:k :v} :k)' \
'({:k :v} :x :not-found)' \
'({:k :v} :x :not-found :too-many)' \
'({:k :v} ((fn [] :k)))' \
;doprintf"%s ;; => ""$src";
cargo run -- -e "$src";done