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

More improvements and replacements ...

Adapted generators output to new style, small change for non-selected
packages

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

Build{Options,Requirements}: Use a common templated struct ...

A bit less copy-pasta is a small but appreciable win.

Implement injection of source files from dependencies into parent final binaries (executed/shared libraries)

Fix #2238 - Renew source files after preGenerateCommands

move command variable substitution to execution ...

This is needed as commands that need to be run need to have generator
settings available before running to avoid inconsistencies with
environment variables passed to the actually ran program and variables
used in substitution.

Fixes #2192

Fixes pre/postGenerateCommands inconsistently using dub environments
(execution was substituted including buildEnvironments, but shell cmd
did not get the build variables for substitution) - now both get
the build variables. Solved by removing code duplication. (env building)

This commit changes the behavior of `dub describe` so that describing
commands settings no longer substitutes variables. Before, known
variables would have been replaced in the output and on unknown
variables `dub describe` would fail with an error
`Target 'x' doesn't exist`

Now exposes some previously private project.d processVars functions

Removes dynamicLibrary being built as staticLibrary for targets other than OMF

Fix build setting inheritance ...

First inherit upward then force the dependency build settings
downwards. Fixes the dependency build settings leaking upwards.

Fixes #2176
Fixes #2177

Add environment variables to BuildSettings (#2121)

Add lowmem for settings

Fix single file package dynamic library

Merge pull request #2099 from veelo/issue1053-visuald-extra-files ...

Include copyFiles and extraDependencyFiles in visuald projects.

Merge pull request #2087 from veelo/issue2086-copyFiles-subPackage-targetPath ...

Fix #2086 copyFiles in subPackage does not honour targetPath.

Include copyFiles and extraDependencyFiles in visuald projects. Resolves #1053.

Selectively import symbols from std.array.

Fix issue #2086: Copy files of sub packages to the target path.

Merge pull request #2040 from omerfirmak/agora-1327 ...

Allow custom dflags to be defined for dependencies

Don't export DFLAGS & LFLAGS to nested invocations by default

Recursively apply dependencyBuildSettings ...

For now, only "dflags" is used

Rebuild buildSettings after preGenerateCommand

Replace occurences of 'in ref' with 'const scope ref' ...

In support for dlang/dmd#11000

Dub root package´target env vars added

New environment variable SOURCE_FILES

Fix issue #1775: preBuildCommand does not take root into account ...

This fixes the case reported, by passing the 'Package.path()'
(which is forwarded by 'Dub.rootPath') to runCommand.

Remove version branches for no-longer-supported compilers

Fix unnecessary rebuild of single file package

Stop recursion early if possible.

Relax string import override rules. Fixes #1788. ...

Overrides *all* string import paths of a dependency, if *any* string import file is overridden.

Store root target reference in a common variable instead of doing repeated lookups.