[GR-18355] [GR-60481] Espresso: Add JVMCI partial implementation.

[graalvmbot]

• Track hasDefaultMethods for classes as well
  It is true if any of the interfaces (directly or indirectly) implemented by the class have default methods.
• Ignore UseJVMCICompiler in espresso launchers
• Remove useless override in BootstrapMethodConstant.Indexes
• Return byte from ConstantPool.Tag.getValue()
  This avoids a cast to byte at usages.
• ModuleExtension: support autoAdd, optional, and requiresConcealed
  • Add Builder to help build ModuleExtensions
  • Add autoAdd property to automatically add the module (--add-modules) if it is enabled.
  • Add optional property to ignore a module if its jar is not available
  • Add requiresConcealed property to automatically add exports if the extension is enabled.
• ModuleExtensions: don't add platform extensions to the boot class path
• RuntimeConstantPool: replace context & classLoader with holder
• Add Meta.isSignaturePolymorphicHolderType
• Methodversion.refKind can be a byte
• Allow hidden fields to be predicated on ContextDescription
• Remove ContextDescription: the version is part of the language
• Simplify InterfaceTables.getITable
• Add checkLoadingConstraints to Member
• Fix error message in memberDoAccessCheck
• Add usesIndy property for methods
• Print warning on missing required ModuleExtension jar
• Minor simplification of ArrayKlass.arrayTypeChecks
• Throw espresso error on ClassNotFoundException in Meta.knownKlass
• Git: ignore compilation databases
• Separate immutable and mutable pool constant interfaces
  The goal of the refactoring is to remove all methods that can't be implemented for resolved entries: immutable entries have all the accessors needed to look at constant pool entries syntactically while resolved constant pool entries have all the accessors needed to look at the resolved version.
  This remove a lot of "trap" methods that can't always be called depending on the type of the constant pool entry and lets that be checked at compile time.
  A isSame method was also introduced to serve a comparison that used to be done by comparing a string representation of the entry.
• LinkResolver: add methods which don't throw on failure
• Add JVMCI partial implementation