Add changelog entry for colored output

LDC: Use `-fvisibility=public -dllimport=all` when compiling a Windows DLL (#2412) ...

As `-shared` can only be used when linking the DLL in the same cmdline too.
On Windows, `-shared` changes the defaults of some important settings wrt.
dllim/export, so specify those explicitly when *compiling* a DLL with dub
(or some static lib dependency thereof etc.).

Recursively link all link deps of dynamic libraries too (#2414) ...

Templates exposed by a dynamic library A can easily lead to
instantiations in dependees needing to be linked against a direct or
indirect dependency of A.

Trivial: Add attributes and documentation to PackageRecipe ...

While the attributes aren't used yet, they are self-descriptive,
and they improve code readability.

Trivial: Make more obvious to developers how to debug YAML parsing ...

This might not be obvious to developers, and the name might not
stick, so just add a comment for future users.

git ignore files generated by scripts/ci/travis.sh and move ignores from .gitignore to test/.gitignore

Configy: Replace parseField with parseAs ...

This removes the need to keep the representation around and have
it stored in a field of the enclosing struct.

Rename CLI flag --colors to --color any D code symbols accordingly

Configy: Synchronize with upstream ...

Bring in changes up to commit 45d8855.

Use SHA256 in place of MD5 in computeBuildName

Call file.isDir once in hashPackage

Use SHA256 and better namings in hashPackage

Configy: Move dub-specific extension tests to their own module ...

Simplify synchronizing with upstream.
A couple comments were also added, and `@Name` was replaced with `@StartsWith`.

Fix x86 OMF support ...

Allowlist -m32omf "linker" flag

Fix #2383

Minor: Replace a foreach with a nested function ...

Avoid an allocation every time and a cast.

Add `fromYAML` method to `Flags` ...

This will be used once Configy starts to parse package recipes.

Configy: Do not recurse into fields with fromYAML ...

Because those fields usually cannot be processed by Configy.
fromYAML is a dub-only extension for now, so there is no upstream PR.

Configy: Add StartsWith as a shorthand for Name(name, true) ...

It is a more descriptive name, to be used extensively
for recipe parsing.

Trivial: Clear trailing whitespace

Configy: Synchronize with upstream changes ...

Bring in changes that were made after some issues in dub were found.

PackageManager.getBestPackage: Introduce Version[Range] overloads

Project: Use Dependency.visit instead of if/else

Trivial: Rework some control flow for readability

Dub.fetch: Deprecate Dependency overload, only accept Version[range] ...

Because fetching a path-based or repository dependency doesn't
make much sense.

Merge pull request #2373 from Geod24/move-more-stuff ...

PackageManager: Move some `Location`-specific routines to `Location`

Signed-off-by: Jan Jurzitza <gh@webfreak.org>
Merged-on-behalf-of: Jan Jurzitza <gh@webfreak.org>

PackageManager: Move routine to write local pkg list to Location struct

PackageManager: Move routine to write override in Location struct

improve some output coloring ...

See #2347

change TAG_WIDTH const to a variable value ...

use it for making error-only output be more readable