Add Collection asserters

[sophie-stan]

• related to Java: Asserter for Collections #1606

[CLAassistant]

All committers have signed the CLA.

[pascalgrimaud]

@sstan001 : first of all, big thanks for your 1st contribution and welcome on board :-)

Some minor comments:

• plz add in description fix https://github.com/jhipster/jhipster-lite/issues/1606 so this ticket will be auto closed once this pull request is merged
• then, you need to sign the CLA, it means you give your code to the JHipster project

[codecov]

Codecov Report

Merging #1616 (19b90c9) into main (c5196ea) will not change coverage.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##                main     #1616   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
- Complexity      1642      1646    +4     
===========================================
  Files            348       350    +2     
  Lines           5770      5814   +44     
  Branches         137       141    +4     
===========================================
+ Hits            5770      5814   +44     

Impacted Files	Coverage Δ
...n/java/tech/jhipster/lite/error/domain/Assert.java	100.00% <100.00%> (ø)
...error/domain/NullElementInCollectionException.java	100.00% <100.00%> (ø)
...er/lite/error/domain/TooManyElementsException.java	100.00% <100.00%> (ø)

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[pascalgrimaud]

Thanks and congrats for your 1st contribution @sstan001
Just FYI, I edited your initial description to not close automatically the ticket, because there is still the template part to do, before closing it