Java Generated DTO fields for char fields aren't given public scope

[jiteshvassa]

@ZachBray - thanks for the new DTO functionality - looks very useful.

I tried using it but noticed that char based fields don't have the public access scope applied.

e.g. given a schema containing:

<type name="char16" primitiveType="char" length="16" />

<sbe:message name="MyType" id="1">
  <field name="charField" id="1" type="char16" />
</sbe:message>

The DTO contains:

void charField(String value)

Rather than:

public void charField(String value)

This means that its not possible to set the field in the DTO.