ENH: quaternion ROLL_PITCH_YAW and YAW_PITCH_ROLL aliases/lookups

COMP: define labelSphericalTensor::I

- remove spurious 'labelI' global constant (labelSphericalTensor::I)

STYLE: replace use of deprecated Tensor vectorComponent

STYLE: avoid bit-wise assignment of bool (VectorSpace compare ops)

applications/test/Tensor2D/Test-Tensor2D.C

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2014 OpenFOAM Foundation
-    Copyright (C) 2019-2020 OpenCFD Ltd.
+    Copyright (C) 2019-2022 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -74,13 +74,8 @@ tensor2D makeRandomContainer(Random& rnd)
 // Do ++nFail_ if values of two objects are not equal within a given tolerance.
 // The function is converted from PEP-485.
 template<class Type>
-typename std::enable_if
-<
-    std::is_same<floatScalar, Type>::value ||
-    std::is_same<doubleScalar, Type>::value ||
-    std::is_same<complex, Type>::value,
-    void
->::type cmp
+typename std::enable_if<pTraits<Type>::rank == 0, void>::type
+cmp
 (
     const word& msg,
     const Type& x,
@@ -112,13 +107,8 @@ typename std::enable_if
 // Do ++nFail_ if two components are not equal within a given tolerance.
 // The function is converted from PEP-485
 template<class Type>
-typename std::enable_if
-<
-    !std::is_same<floatScalar, Type>::value &&
-    !std::is_same<doubleScalar, Type>::value &&
-    !std::is_same<complex, Type>::value,
-    void
->::type cmp
+typename std::enable_if<pTraits<Type>::rank != 0, void>::type
+cmp
 (
     const word& msg,
     const Type& x,
@@ -131,7 +121,7 @@ typename std::enable_if
 
     unsigned nFail = 0;
 
-    for (label i = 0; i < pTraits<Type>::nComponents; ++i)
+    for (direction i = 0; i < pTraits<Type>::nComponents; ++i)
     {
         if (max(absTol, relTol*max(mag(x[i]), mag(y[i]))) < mag(x[i] - y[i]))
         {