add Preconditions.checkArgumentNotNull which throws IAE

[davidmoten]

as per title

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (6c3fc6f) 100.00% compared to head (b616276) 100.00%.

❗ Current head b616276 differs from pull request most recent head 482e0e9. Consider uploading reports for the commit 482e0e9 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##              master       #59   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
- Complexity        59        62    +3     
===========================================
  Files              8         8           
  Lines            106       110    +4     
  Branches           5         5           
===========================================
+ Hits             106       110    +4     

Impacted Files	Coverage Δ
...com/github/davidmoten/guavamini/Preconditions.java	100.00% <100.00%> (ø)

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