Added a bunch of missing byte-order marks.

I have made it so that it is possible to access extra card fields through the script as many, many templates are suffering for no good 
reason as a result of them not being scriptable. I understand that the gamme shouldn't be allowed to rely on them, but the styles 
should, and as such, they should definitely be accessible from scripting.

Updated creature type lists in accordance w/ Oracle update.
Shrank textbox font size for magic-future.
Fixed new "colored multicolor land name" option in futureshifts.

Added new styling option to replicate "Murmuring Bosk" frame from Morningtide.
Changed game file "creature type" lists to be named "Race" and "Class".

Fixed transparency on update arrow.

fixed: reminder text of a keyword can not be disabled if that keyword appears as the start of another word before it.

Keyword polish.
Various other maintenances.
Added "magic-mana-small-grey" as colorless mana font.
Removed "colorless mana" styling choice when applicable.

Updated expected_locale_keys

Adjusted dependancies.

"Shifted sorting" on futureshifts and planeshifts is now optional.

Added resample(image,width,height), instead of always passing in images

Fixed: direction:vertical was putting characters on the next line, causing multi-char symbols to render incorrectly

Added larger masks for magic-new-planeswalkers to stop errors.

Fixed: positioning of stretched + rotated text

- download icons of packages

Magic-old heavily updated.
Magic keyword system updated to allow for Prowl (morningtide).
Amplify keyword updated to maintain functionality.
Prowl, Kinship, and Reinforce keywords added to Magic and Vanguard.
Protection keyword updated.
Altered creature type lists (they still don't really work right).
Fixed an error in champion keyword; still no championing multiple cards.
New colorless frame for magic-future.
Made watermarks in magic-future more narrow; keeps larger ones out of typeline.
Old style watermarks now available in magic-old styles.

 Now all C++ files need to #include <util/prec.hpp>
 That is why all .cpp files are touched by this commit

Many changes to installers and update checking:
     - the window is now called PackagesWindow, in a new source file
     - update checking is now independent from the PackagesWindow. For update checking only a list of package versions are needed (vector<PackageDependency>). This is much less information to download at each startup.
     - the list of available packages is now a list of available Installers, since an installer can contain multiple packages.
     - moved the logic of dependency checking etc. to data/installer
     - moved the actual installation to util/io/package_manager
     - moved directory iteration/creation logic to util/file_utils
     - added PackageDirectory: the local and global package directory now have their own object (was part of PackageManager)
     - added PackageVersion: for detecting if a package has been modified after it was installed.
     - added PackageDescription: description/header of a package. Basicly the same as what Packaged provides.
     - added DownloadableInstaller: where to find an insaller, what does it contain?
     - added InstallablePackage: brining it all together: installer, package, status, action.

Current status: the insaller is currently broken in a few places, more on that soon.

 - Some refactoring of the other field types