Missing byteConversionValues.expected.Float16

[iamstolis]

#3849 added Float16Array into typedArrayConstructors. Unfortunately, it failed to provide byteConversionValues.expected.Float16 (in harness/byteConversionValues.js). So, the tests that use testTypedArrayConversions(byteConversionValues, ...) fail when Float16Array is enabled. This seems to affect the following tests:

built-ins/TypedArray/prototype/fill/fill-values-conversion-operations.js
built-ins/TypedArray/prototype/map/return-new-typedarray-conversion-operation.js
built-ins/TypedArray/prototype/set/array-arg-src-tonumber-value-conversions.js
built-ins/TypedArray/prototype/set/typedarray-arg-set-values-diff-buffer-other-type-conversions-sab.js
built-ins/TypedArray/prototype/set/typedarray-arg-set-values-diff-buffer-other-type-conversions.js
built-ins/TypedArrayConstructors/ctors/object-arg/conversion-operation.js
built-ins/TypedArrayConstructors/internals/DefineOwnProperty/conversion-operation.js
built-ins/TypedArrayConstructors/internals/Set/conversion-operation.js