feat: Restack stream base classes, fix stack overflow scenarios

[DaveSkender]

Partially implements:

• feat: Full chain streaming prototypes #1092

Also fixes:

• test: missing core observer/observable tests cases
• refactor: inherited observer methods; consider merging concrete StreamProvider and inherited methods in IStreamHub
• test: one QuoteHub with all indicators subscribed (massive parallel)
• test: one QuoteHub with max possible chain depth (massive serial)
• performance tuning, 10x
• test/consider: forcing concrete types for observables, cached quotes (to reduce stack overflow risks).

[DaveSkender]

with record struct types

Method	Mean	Error	StdDev
AdlHub	1,832.0 us	8.44 us	7.48 us
AlligatorHub	1,809.6 us	13.03 us	12.19 us
EmaHub	1,824.0 us	15.15 us	14.17 us
RenkoHub	629.5 us	4.58 us	4.06 us
SmaHub	1,810.4 us	9.22 us	8.62 us

with record types

Method	Mean	Error	StdDev
AdlHub	456.8 us	5.09 us	4.76 us
AlligatorHub	487.0 us	3.65 us	3.24 us
EmaHub	436.2 us	3.14 us	2.94 us
RenkoHub	337.5 us	1.58 us	1.40 us
SmaHub	449.1 us	5.00 us	4.68 us

Though, interesting; when adding Ema back as struct it gets better; so it must be something else related to this revert, something as simple as the test quotes importer mods.

Method	Mean	Error	StdDev
EmaHub	323.2 us	3.98 us	3.73 us

[DaveSkender]

With immutable record types and primary positional constructors. These are still 5-10x slower than series-based uses, so will continue to narrow the gap. These will always be slower for batches due to having more overhead to manage the memory cache.

Method	Mean	Error	StdDev
AdlHub	377.6 us	5.03 us	4.70 us
AlligatorHub	408.2 us	5.33 us	4.98 us
EmaHub	350.1 us	1.91 us	1.70 us
RenkoHub	275.7 us	1.68 us	1.57 us
SmaHub	369.6 us	3.49 us	3.26 us

[DaveSkender]

With stacked streaming base class inheritence

Method	Mean	Error	StdDev
AdlHub	365.08 us	4.388 us	4.105 us
AlligatorHub	362.74 us	4.755 us	4.448 us
EmaHub	346.38 us	5.462 us	5.109 us
QuoteHub	18.35 us	0.340 us	0.318 us
RenkoHub	275.52 us	2.467 us	2.187 us
SmaHub	358.27 us	4.560 us	4.042 us

[DaveSkender]

Method	Mean	Error	StdDev
AdlHub	32.65 us	5.501 us	0.302 us
AlligatorHub	52.81 us	26.280 us	1.441 us
EmaHub	26.30 us	4.368 us	0.239 us
QuoteHub	13.71 us	1.932 us	0.106 us
QuotePartHub	28.47 us	6.524 us	0.358 us
RenkoHub	161.57 us	41.480 us	2.274 us
SmaHub	37.52 us	7.330 us	0.402 us