Add PercentType or Equivalent

[corymosiman12]

Is your feature request related to a problem? Please describe.

We have many elements that require a percent from 0-100 as an expected value. Define a new simple type like:

  <xs:simpleType name="PercentType">
    <xs:restriction base="xs:decimal">
      <xs:minInclusive value="0"/>
      <xs:maxInclusive value="100"/>
    </xs:restriction>
  </xs:simpleType>

and migrate all existing elements with percent requirements.

Describe the solution you'd like

Describe alternatives you've considered

Additional context