mupen64plus/mupen64plus-core

…tting functions with variadic arguments

… issue #630

Add ppc64le support

Don't call SDL_PumpEvents() in core

do not force saving config when file not present

Front-ends now ensure that configuration is saved (when desired) before
starting the game.

Fixes for last save state update

Make stop_after_jal a save state parameter instead of configuration

new_dynarec fixes

…lot(), because it will be called inside of savestates_select_slot() if necessary

…ameter because the ConfigGetParamX functions can convert from any type

Allow valid interpretations of strings as non-strings

The various ConfigGetParamX() functions can handle string inputs
already, but ConfigGetParameter() rejects such inputs beforehand.

Modify ConfigGetParameter() to validate that a string represents a
numeric value. If so, then ConfigGetParamX() can handle the input.
Factor the checks into a new function to keep them from getting too
long.

Use case:
Values read from the ui-console command line are always strings, by
necessity. When the config file is empty (or somehow lacking the
specified parameter), then ui-console cannot know the desired type, so
it defaults to storing the parameter as a string. Without this patch,
this can result in plugin code ignoring a validly-specified
command-line parameter.

Use case:
Without this patch, if a user unknowingly specifies a float or integer
value in the config file within double-quotes, this can result in plugin
code ignoring the parameter.