Ensure the alignment of a node<value_type> is the alignment of the whole node allocation, not just the user type

Removing old compiler special case code for EA_CPP14_CONSTEXPR

Adding eastl::string hash tests and removing an addition overload in the helper template that contrains usage to enum types.

Fixing user reported regression when attempting to use fancy pointers in a tuple

Resolving uint128_t hashing compiler errors from properly limiting the generic template for enums

eastl::pair adding C 17 structured bindings unpacking support

eastl::atomic implementation - See EASTL/atomic.h for documentation

eastl::function - Optimized function call operator
- see Invoker() in function_detail.h for explanation of the optimization

Consolidate Warnings by using EA_DISABLE_WARNING macros

Reverting the UDL warning suppression because of push/pop mismatch issues with the EABase warning suppression macros

eastl::variant - Fixed variant warnings due to not sfinae overloads that are not the same type but still comparable
- improved code gen on msvc
- added tests

Removed unndeded allocator_traits headers

Added comments on reverse_wrapper

Removed sparse_matrix.h as it was removed internally quite a while ago

Updated files that had slight differences to internal eastl

Update travis CI to use g -9 && clang -11

Updated README and CONTRIBUTING to allow contributors to submit their info under the contributors section

cleared mpPtrArray in base destructor #389

Add eastl::span<*> to EASTL.natvis #386

Fix typo in doc #384

Fix reverse adaptor when using on a rvalue range #382

Fix GCC 9 string SSO segfault #380

eastl::shared_ptr<>::reset(): function not thread safe #378

Enable compilation without building tests #359

Fix tuple vector assign #374

fixed unique_ptr<[]>::reset() instructions order. Internal pointer must be updated before deleting object #375