Mostly reindent PHP scripts to spaces.

Many parts are disabled for the PHP-7.4 branch. We only strip
trailing whitespace in C files and reindent .php files to spaces.

Resources used as array keys are generally handled by throwing a
notice and converting the resource to the resource handle. The only
exception is the [$resource => null] syntax, where this was treated
as an illegal offset type instead. However, this also only happened
for VM evaluations, the AST evaluator did handle resources correctly.

Similar to what is done for socket read/write errors.

If a string var_dump contains a wildcard, also make the length a
wildcard.

This makes the script a bit more portable when used on systems with
different LC_ALL and LANG settings.

This enhances the makidst script:
- integrate both snapshot and makedist scripts together
- add help and options
- generated files are created in the php-src repository directly
- other minor enhancemenets such as CS fixes
- functionality moved from the Makefile to only shell script
- Add missed patching of the Zend Parsers to the main build step
- Add all *.tmp files to gitignore

The vcsclean script is really only a wrapper for a git clean command.
Developers should use the more proper and clear native Git command
directly instead:
`git clean -Xfd`

This script hasn't been used since using PEAR as a package manager for
PHP extensions since it is using Makefile.in as an indicator if the
current directory is extension. Instead of this script extensions can
be packaged differently and more properly with either current PEAR
or with some other manual method.

The buildmk.stamp file has been created by the *nix build checking step
to run the check step only once. Instead of poluting the project root
directory, the stamp file can be also omitted. Performance difference is
very minimal to not justify having the stamp check at all today anymore.

This patch integrates the buildcheck.sh to buildconf script directly.