Remove Vibe.d HTTP support / library-nonet ...

library-nonet has been broken for years, and is not used.
Most importantly, it has no support for timeout.
Lastly, the likely reason it was originally introduced was to
avoid a hard dependency on cURL, something that has been fixed
in Phobos directly.

vibecompat/core/file: Publicly import path, not URL ...

We don't actually use URL here, nor should we,
we use path, so correct the import.

Path: Remove unused isValidFilename private function

Path: Add missing else clause on version statement ...

This was wrong on many level:
- The missing `else` clause meant that the `enforce` clause was always there on Windows;
- The `enforce("Reason")` should have been `enforce(false, "Reason")`,
  as in its current form it would never fail and not serve its intended purpose;
- It was pushing at runtime something that was easily detected at CT;

Fixes #2452 - Accept non-existing file in `sourceFiles`

fixes #2448 - Accept sourceFiles without module declaration

Use configy library to parse dub.json file ...

This will provide a vastly superior UX to the users:
- They will be warned about typos;
- The type information provided will be more accurate and always include file/line infos
  (e.g. no more 'Invalid SemVer versions');
- We can expose a better recipe struct to library users on the long run,
  by separating the actual data DUB uses from what it reads;
- We can be more descriptive about errors / intent, for example by using `SetInfo`;

Trivial: Convert some spaces to tabs

change TAG_WIDTH const to a variable value ...

use it for making error-only output be more readable

Integrate Configy colored output with dub's

Make unittest independent of byte value escape sequence.

Address review by WebFreak001.

Resolve deprecations.

Keep logging functionality out of the public API as requested in https://github.com/dlang/dub/pull/2124#issuecomment-813016939.

Fix indentation style, now using tabs

Fix PowerShell messed-up colors ...

Now winterm.d (which provides partial ANSI/VT100 emulation for Windows
console) respects bg.init and fg.init (Color.init in logging.d) and,
when encountered, restores the background/foreground color that there
was before instead of just setting it to black

Re-added dub.internal.vibecompat.core.log as deprecated ...

I simply aliases the new dub.logging module, printing a deprecation
message while compiling

Removed cwrite from colorize unittests

New logging module - initial functionality ...

The new module replaces dub.internal.vibecompat.core.log by using the
same function names, but implementing colored output and the left
fixed-width tag. Overloaded functions are provided to output colored
text.

Still missing initLogging() and non-TTY stdout/stderr detection

Dependency: Change format for path-based dependencies (#2316) ...

* Add missing attributes to NativePath.empty

* Dependency: Change format for path-based dependencies

Trivial: Add attributes on various NativePath methods ...

So SumType infers its opEquals and co as safe.

Merge remote-tracking branch 'origin/stable' into merge_stable ...

Conflicts:
	source/dub/dependency.d

Avoid needless string concat in log calls

Revert determineVersionWithGitTool to the behavior before #2263.

Fix #2234, make copies writable.

[use `.commit…` if tag already contains pre-release part]

Harden package version detection from `git describe` ...

Resolves issue #2262.

Annotate escaping reference. ...

Fixes dip1000 error.

Fix issue 2051 failing CI

Qualify `toType`-parameter `o` as `scope return`