Expose the field data arrays in the display color selector

Change-Id: I9ae7c22889c8362edd33aa7968bc112caedecde8
Added FIELD as valid association

Change-Id: I4844fffad1dc1f22e8581aaf6d440b0c800a54cf
Enable setting of field association to none (field data)

Change-Id: Ic40aa3c11f6821d1c325fccc42417faa76298ac8
Made it possible to get prominent values from field data

Change-Id: I26f08d97649432844eb23e623489b953cb4b1bba
Made it possible to color by field data

Specifically, handle arrays where the field association is
FIELD_ASSOCIATION_NONE.

Change-Id: Iec85d7aabdbf527e895752e6ecae040805d60dff
Added missing header needed due to recent changes in VTK

Change-Id: Id701bafcc7c4dc602246d0b03746f4f2ec63adeb
Set field data tuple by which to color

When the scalar mode is set to VTK_SCALAR_MODE_USE_FIELD_DATA,
sets the field data tuple index used to color each block to
zero.

Change-Id: Ic145f236ac817410ceed7e012a71ec31cefdd928
Configure transfer function for vtkStringArrays

Transfer functions work only in indexed color mode for
vtkStringArrays. Therefore, when setting the scalar coloring for a
representation, set the transfer function to use indexed color when
the array is vtkStringArrays.

Change-Id: I35a7c01b2f726a04f7ec0b2feeb5616f6f00a9d6
Added test for coloring by vtkStringArray in cell data

Change-Id: Iaddb22ed19f253bb2b659dbcb0189bb4e5e36876
Bumped VTK version to get new scalar mapping features

Change-Id: I4d8a3e446d0152b7b9df39e7c602d091291b0170
Merge topic 'KW00001499_ColorByFieldData' into next

b68df73b Bumped VTK version to get new scalar mapping features
c1602b5f Added test for coloring by vtkStringArray in cell data
145d87c5 Configure transfer function for vtkStringArrays
52a142a9 Set field data tuple by which to color
b1033ec8 Added missing header needed due to recent changes in VTK
a081baf9 Made it possible to color by field data
b3269745 Made it possible to get prominent values from field data
c92d425b Enable setting of field association to none (field data)
796ae6eb Added FIELD as valid association
2e21207d Expose the field data arrays in the display color selector