Add support to enum types

[oswaldobapvicjr]

The ParseFactory may perform parsing of Enum elements which can be retrieved based on their constant names, performing case-insensitive matching of the name.

For example:

ParseFactory.parse(Month.class, "january");    // returns Month.JANUARY
ParseFactory.parse(DayOfWeek.class, "friday"); // returns DayOfWeek.FRIDAY

So the mappers PropertiesToObjectMapper<T> and INIToObjectMapper<T> may benefit from it by populating enum fields.

[codecov]

Codecov Report

Merging #125 (26d6401) into master (154244c) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master     #125   +/-   ##
=========================================
  Coverage     99.26%   99.26%           
- Complexity      426      428    +2     
=========================================
  Files            67       67           
  Lines           811      812    +1     
  Branches         54       54           
=========================================
+ Hits            805      806    +1     
  Misses            5        5           
  Partials          1        1           

Impacted Files	Coverage Δ
...in/java/net/obvj/confectory/util/ParseFactory.java	100.00% <100.00%> (ø)