Client tools: add missing package-info

[pascalgrimaud]

No description provided.

[codecov]

Codecov Report

Merging #1839 (114b265) into main (9cadd15) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##                main     #1839   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
- Complexity      1848      1852    +4     
===========================================
  Files            394       396    +2     
  Lines           6950      6967   +17     
  Branches         154       155    +1     
===========================================
+ Hits            6950      6967   +17     

Impacted Files	Coverage Δ
...n/java/tech/jhipster/lite/common/domain/Enums.java	100.00% <0.00%> (ø)
...er/lite/common/domain/UnmappableEnumException.java	100.00% <0.00%> (ø)

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