DataProvider types based on string that accept multiple input types with conversions but are not soft types throw spurious errors at runtime with non-string types

[davidnich]

ex:

unhandled QORE User exception thrown in TID 1 at 2022-03-25 06:57:34.214318 Fri +01:00 (CET) in QoreStringDataTypeBase::acceptsValue() (/home/david/src/Qorus/current/qlib/DataProvider/QoreStringDataTypeBase.qc:91-92 (Qore user code))
INVALID-REQUEST: invalid request argument for request "enable": RUNTIME-TYPE-ERROR: error in type "hash<auto>" field "job": RUNTIME-TYPE-ERROR: value of type "integer" cannot be converted to type "job" (while setting field "job")
call stack:
 10: RETHROW at ../bin/qdp:144)
  9: RETHROW at /home/david/src/Qorus/current/qlib/DataProvider/AbstractDataProvider.qc:562)
  8: RETHROW at /home/david/src/Qorus/current/qlib/DataProvider/HashDataType.qc:116)
  7: RETHROW at /home/david/src/Qorus/current/qlib/DataProvider/AbstractDataField.qc:175)
  6: QoreStringDataTypeBase::acceptsValue() (/home/david/src/Qorus/current/qlib/DataProvider/AbstractDataField.qc:173 (Qore user code))
  5: AbstractDataField::acceptsValue() (/home/david/src/Qorus/current/qlib/DataProvider/HashDataType.qc:114 (Qore user code))
  4: HashDataType::acceptsValue() (/home/david/src/Qorus/current/qlib/DataProvider/AbstractDataProvider.qc:560 (Qore user code))
  3: AbstractDataProvider::doRequest() (../bin/qdp:341 (Qore user code))
  2: QdpCmd::doRequest() (../bin/qdp:139 (Qore user code))
  1: QdpCmd::constructor() (<builtin>:-1 (Qore user code))