fix: support EQ/NE nullable criteria values for Java scalars

[igdianov]

Add support for types to build EQ/NE predicates for Java scalars with null values

• Boolean.class
• Byte.class
• Character.class
• Double.class
• Float.class
• Integer.class
• Long.class
• Short.class
• BigInteger.class
• BigDecimal.class
• String.class
• Date.class
• LocalDate.class
• LocalDateTime.class
• ZonedDateTime.class
• Instant.class
• LocalTime.class
• Calendar.class
• OffsetDateTime.class
• java.sql.Date.class
• java.sql.Time.class
• java.sql.Timestamp.class
• UUID.class

See tests for details..

[codecov]

Codecov Report

Merging #302 (1ead08e) into master (ae420ed) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #302      +/-   ##
============================================
+ Coverage     74.68%   74.69%   +0.01%     
  Complexity     1087     1087              
============================================
  Files            72       72              
  Lines          4862     4864       +2     
  Branches        698      698              
============================================
+ Hits           3631     3633       +2     
  Misses          918      918              
  Partials        313      313              

Impacted Files	Coverage Δ
...hql/jpa/query/schema/impl/JpaPredicateBuilder.java	62.31% <100.00%> (+0.15%)	⬆️

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