Always define HPX_COMPUTE_HOST_CODE for host code

Moving all distribution policies into modules

Fix clang-format error in sender.hpp

Minor adapted algos fixes

Removing ESSENTIAL option to the doc example

Fixing is_invocable deprecation warnings

Add formatting exceptions for libhpx to create_module_skeleton.py

Add examples and explanation on when tag_fallback/priority are useful

Replaced tag_invoke with tag_fallback_invoke for adjacent_find algorithm

Move copy algorithms to tag_fallback_invoke

Adapt replace(_if) to C++20

Add P0443r14 executor and a a few P1897 algorithms

Set compatibility headers by default to on

Require cmake 3.17

- Move enable_ifs to template parameters
- Add enable_ifs to some member functions that did not ...

Flyby: remove the hpx option and enable it by default to ON by default

Make HPX_WITH_PSEUDO_DEPENDENCIES a cache variable

Moving some action tests to modules

Needs to be cache variable to be propagated to dependent projects, but
stays internal.

- flyby adding test for invoking apply for an action accepting an rvalue

Add doxygen documentation for thread_schedule_hint

Fix htts_v2 tests linking

Remove some minor unnecessary CMake options

Remove some leftover HPX_WITH_*_SCHEDULER uses

Re-enable component tests

Not proposed. Replace with test-specific receivers.

The specification is seeing too many (conflicting) changes/proposals to
justify adding it right ...