[feature request] Add `stop`, `pause`, and `resume` commands.

[Bpendragon]

If this is a feature request describe it here

I would like to request three new @OCTOLAPSE commands that can be injected into gcode and can be used by any stabilization method.

• @OCTOLAPSE STOP-SNAPSHOTS - Unconditionally stops Octolapse from taking snapshots for the rest of the print.
• @OCTOLAPSE PAUSE-SNAPSHOTS - Stops Octolapse from taking snapshots until a RESUME command or the end of print (whichever comes first)
• @OCTOLAPSE RESUME-SNAPSHOTS - If snapshots are paused (not stopped) will begin taking snapshots again.

Justifications:

• On my MK3S with MMU octolapse will trigger after the print is finished while the extruder has parked itself in the back left corner of the print bed, which causes a massive jump in the timelapse that just looks pretty bad. I'd like to add a line to my End GCode before the printer parks itself and removes the filament from the extruder to stop processing snapshot commands.
• During pauses for adding things like captive nuts sometimes Octolapse will behave poorly (similar behavior to #685 sometimes, but I never notice it until after the fact), adding pause and resume commands to Octolapse which I can add before and after those pauses might keep the timelapse working properly.

Of the features I'd say STOP would be the higher priority (and easiest to implement)

Version of Octolapse

Octolapse Version: Octolapse 0.4.2

Version of OctoPrint

OctoPrint Version: OctoPrint 1.8.7

When you ran into the problem, did you have diagnostic logging enabled?

Diagnostic Logging was Enabled: _REPLACE_THISYES_OR_NO

What were you doing when the problem occurred

1. _REPLACE_THISSTEP_ONE_GOES_HERE
2. _REPLACE_THISSTEP_TWO_GOES_HERE
3. _REPLACE_THISSTEP_...

What should have happened?

_REPLACE_THISPUT_YOUR_DESCRIPTION_HERE

What happened instead?

_REPLACE_THISPUT_YOUR_DESCRIPTION_HERE

Operating System running OctoPrint and Octolapse

OS Name: _REPLACE_THISOS_NAME_GOES_HERE Os Version: _REPLACE_THISOS_VERSION_GOES_HERE

Printer model & used firmware incl. version

Printer Model: _REPLACE_THISPRINTER_MODEL_GOES_HERE Printer Firmware Version: _REPLACE_THISPRINTER_FIRMWARE_VERSION_GOES_HERE

Browser and version of browser, operating system running browser

Browser: _REPLACE_THISBROWSER_VERSION_GOES_HERE Browser OS: _REPLACE_THISBROWSER_OS_GOES_HERE

Link to the gcode file you were printing when the problem occurred

Link to Gcode File: _REPLACE_THISGCODE_FILE_LINK_GOES_HERE

Link to settings.json

Link to settings.json with all passwords removed: _REPLACE_THISSETTINGS_JSON_LINK_GOES_HERE

Link to plugin_octolapse.log

Link to plugin_octolapse.log: LINK_GOES_HERE

Link to octoprint.log

Link to octoprint.log: _REPLACE_THISLINK_GOES_HERE

Link to contents of Javascript console in the browser

Link to javascript console output: _REPLACE_THISLINK_GOES_HERE

Screenshots and/or videos of the problem:

Screenshot/Video Links: _REPLACE_THISLINKs_GO_HERE

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[Bpendragon]

For reference here is the default End gcode for a mk3s with MMU2s attached

{if max_layer_z < max_print_height}G1 Z{z_offset+min(max_layer_z+1, max_print_height)} F720 ; Move print head up{endif}
G1 X0 Y210 F7200 ; park
{if max_layer_z < max_print_height}G1 Z{z_offset+min(max_layer_z+49, max_print_height)} F720 ; Move print head further up{endif}
G1 E2 F5000
G1 E2 F5500
G1 E2 F6000
G1 E-15 F5800
G1 E-20 F5500
G1 E10 F3000
G1 E-10 F3100
G1 E10 F3150
G1 E-10 F3250
G1 E10 F3300

M140 S0 ; turn off heatbed
M107 ; turn off fan
M702 C
G4 ; wait
M221 S100 ; reset flow
M900 K0 ; reset LA
{if print_settings_id=~/.*(DETAIL @MK3|QUALITY @MK3|@0.25 nozzle MK3).*/}M907 E538 ; reset extruder motor current{endif}
M104 S0 ; turn off temperature
M84 ; disable motors
; max_layer_z = [max_layer_z]

Octolapse usually triggers after teh {endif} and before G1 E2 F5000