Include them after the other scripts with -ex in GDB command line

- Commented out messages for memory allocations outside a parser context
- Commented out fallback for when a parser vtable can't be found in the dictionary, as that should be an error
- Added debug line printing the address that was not found in the vtable name->address dictionary

- In h_many, env->sep is going to be NULL, avoid trying to add it as a parser object

Hopefully there will be fewer incomprehensible errors now

Removing gdb.parse_and_eval and just making gdb.Values directly

name_from_vtable() needed the top_level_parse attribute

Extracting parser environment information will be done through the GDB Value API

- handle parser names being None in HammerParserBacktrace
- figured out subscripting, so the stringly typed code in the Env
classes can be replaced

Also removed an unused dict

HParserEnv.name_from_vtable() should be automatically called now

Makes the window resizing itself a bit more tolerable

super().__init__() needed to be explicitly called for superclass instance variable to be initialized

- fix wrong signature for SeekEnv.__str__()

Fixes:
- missing parenthesis in ActionEnv
- ord() instead of int() in ChEnv
- VTTypes() needs to be initialized in InitParserBreakpoint, to get the correct gdb frame. Also keep references in TopLevelParse

Dependencies between script files are kind of a mess at the moment

- Add missing __str__() methods
- cast gdb.Value to int on creation