Replace boost::noncopyable with explicit deletion of copy constructor and assignment operator in pxr/base/tf

[nvmkuruc]

Description of Change(s)

• TfAtomicOfstreamWrapper, Tf_EnumRegistry, TfErrorMark, Tf_NoticeRegistry, TfTypeInfoMap, Tf_TypeRegistry, TfType::_TypeInfo, and TfRefPtrTracker have been updated to use explicit deletion of the copy constructor and assignment operator
• A spurious include of boost/noncopyable.hpp in pxr/base/tf/fileUtils.cpp has been removed
• The documentation for TfSingleton has removed references to boost::noncopyable
• The TfWeakPtr test case has been updated to avoid using boost::noncopyable

Fixes Issue(s)

• Prefer explicit deletion of copy constructor and assignment operator to boost::noncopyable #2203

• I have verified that all unit tests pass with the proposed changes

• I have submitted a signed Contributor License Agreement

[sunyab]

Filed as internal issue #USD-7926