Additional 4.1 tweaks based on existing PRs

[markerikson]

This PR:

• Adds an error message if resultFunc isn't a function
• Improves the error message for bad dependency args
• Includes memoizedResultFunc and lastResult in the util fields of the selector

Fixes #350
Fixes #404

Supersedes #358 , #359, #405 , #448 .

[codecov]

Codecov Report

Merging #514 (c9a5207) into master (ee1500d) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #514   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines           94       101    +7     
  Branches        21        24    +3     
=========================================
+ Hits            94       101    +7     

Impacted Files	Coverage Δ
src/index.ts	100.00% <100.00%> (ø)

[RusinovAnton]

Thank you!