Remove Requires.jl and make a multi-package setup

[ChrisRackauckas]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 2342065305

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+4.1%) to 62.109%

---

Files with Coverage Reduction	New Missed Lines	%
src/factorization.jl	2	74.82%

Totals
Change from base Build 2184492217:	4.1%
Covered Lines:	318
Relevant Lines:	512

---

💛 - Coveralls

[codecov]

Codecov Report

Merging #130 (158072b) into main (1bb2a3a) will increase coverage by 2.54%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #130      +/-   ##
==========================================
+ Coverage   59.20%   61.74%   +2.54%     
==========================================
  Files          11        9       -2     
  Lines         603      515      -88     
==========================================
- Hits          357      318      -39     
+ Misses        246      197      -49     

Impacted Files	Coverage Δ
src/LinearSolve.jl	0.00% <ø> (-20.00%)	⬇️
src/init.jl	60.00% <ø> (+4.44%)	⬆️
lib/LinearSolvePardiso/src/LinearSolvePardiso.jl

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