Interface harmonisation step 1, renaming most outpack functions

[richfitz]

Based on #45, diff will clear up after merge

This PR:

• removes outpack functions that are no longer called by users (outpack_packet_*, outpack_checksum, outpack_id, outpack_root_open); these were to support orderly2 when it was a consumer of outpack
• renames most other functions from outpack_ to orderly_ with no change in functionality, even where I wanted to
• reorganises the docs where there were dangling links (and only there)

Each commit passes R CMD check so can be easily checked on its own, though they need to be applied in this order to avoid some conflicts.

The next ones in this series will

• rename the location ones (easiest if we can Add support for pushing into outpack_server #42) merged first but I can rebase that if needed
• rename the configuration ones (but probably need to think more careful about config at the same time)
• rename outpack_init (but there's a ticket about init to do at the same time or nearby - this collides with an orderly function)

Then there's some harmonisation of argument names to do

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (97b4554) 100.00% compared to head (b29c738) 100.00%.

❗ Current head b29c738 differs from pull request most recent head 9c52775. Consider uploading reports for the commit 9c52775 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #46   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           35        35           
  Lines         2781      2781           
=========================================
  Hits          2781      2781           

Files Changed	Coverage Δ
R/interactive.R	100.00% <ø> (ø)
R/outpack_checksum.R	100.00% <ø> (ø)
R/outpack_helpers.R	100.00% <ø> (ø)
R/outpack_location.R	100.00% <ø> (ø)
R/outpack_logging.R	100.00% <ø> (ø)
R/outpack_metadata.R	100.00% <ø> (ø)
R/outpack_misc.R	100.00% <ø> (ø)
R/outpack_root.R	100.00% <ø> (ø)
R/query_deparse.R	100.00% <ø> (ø)
R/run.R	100.00% <ø> (ø)
... and 5 more

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[r-ash]

We chatted through this, changes look good!