Version 11 beta1

[fiseni]

This is a massive PR. A ton of work was done and I'm quite happy with the results. I think it's ready to be published as a beta version.

• Refactored and rebuilt the internals from the ground up.
• Reduced the memory footprint drastically.
• Negligible to no overhead for specification evaluations.
• Better support for extending specifications.

The new version reduces the memory footprint drastically. The overhead of the library is now negligible and statistically insignificant. Here are the benchmark results of ToQueryString() for various queries. Refer to the Benchmarks project for more benchmarks.

Type:

• 0 -> Empty
• 1 -> Single Where clause
• 2 -> Where and OrderBy
• 3 -> Where, Order chain, Include chain, Flag (AsNoTracking)
• 4 -> Where, Order chain, Include chain, Like, Skip, Take, Flag (AsNoTracking)

Method	Type	Mean	Error	StdDev	Ratio	Gen0	Gen1	Allocated	Alloc Ratio
EFCore	0	81.55 us	0.686 us	0.608 us	1.00	10.0098	0.9766	82.54 KB	1.00
Spec	0	78.18 us	0.472 us	0.441 us	0.96	10.0098	0.9766	82.53 KB	1.00
EFCore	1	92.62 us	0.350 us	0.310 us	1.00	10.2539	0.9766	84.77 KB	1.00
Spec	1	92.92 us	0.252 us	0.236 us	1.00	10.2539	0.9766	84.84 KB	1.00
EFCore	2	95.48 us	0.654 us	0.580 us	1.00	10.2539	0.9766	86.03 KB	1.00
Spec	2	98.36 us	0.775 us	0.687 us	1.03	10.2539	0.4883	86.12 KB	1.00
EFCore	3	106.62 us	0.684 us	0.606 us	1.00	10.7422	0.4883	90.35 KB	1.00
Spec	3	109.56 us	0.700 us	0.655 us	1.03	10.7422	0.4883	90.64 KB	1.00
EFCore	4	147.47 us	0.619 us	0.483 us	1.00	13.1836	0.9766	110.78 KB	1.00
Spec	4	150.82 us	0.538 us	0.449 us	1.02	13.1836	0.9766	111.32 KB	1.00