Benchmark serializer naming

[JohannesDeml]

This is another (a bit larger) cleanup for the benchmarks.

• All serializers are now in the namespace Benchmark.Serializers
• All serializers now have a ToString() method to define how they are named in the BenchmarkDotNet tables
• All serializers except of MessagePackSerializer now have a class name that matches their file name (getting rid of the #pragma warning disable SA1649 // File name should match first type name)

The resulting table looks like this now:

Method	Serializer	Mean	Error	DataSize	Gen 0	Gen 1	Gen 2	Allocated
AnswerDeserialize	BinaryFormatter	56.833 μs	NA	-	4.0894	0.3052	-	34568 B
AnswerDeserialize	BsonNet	36.755 μs	NA	-	1.2207	-	-	10248 B
AnswerDeserialize	Ceras	4.233 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	DataContract	36.496 μs	NA	-	2.0142	0.0610	-	17064 B
AnswerDeserialize	FsPickler	6.553 μs	NA	-	0.4654	0.0076	-	3936 B
AnswerDeserialize	Hyperion	5.669 μs	NA	-	0.5035	-	-	4216 B
AnswerDeserialize	Jil	10.960 μs	NA	-	0.7172	-	-	6032 B
AnswerDeserialize	JsonNet	37.844 μs	NA	-	1.2207	-	-	10360 B
AnswerDeserialize	MessagePack_v1	2.406 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MessagePack_v2	3.344 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MessagePackLz4_v1	2.609 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MessagePackLz4_v2	4.260 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MsgPack_v1_str_lz4	3.827 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MsgPack_v1_string	3.592 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MsgPack_v2_opt	4.855 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MsgPack_v2_str_lz4	6.531 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MsgPack_v2_string	5.556 μs	NA	-	0.2136	-	-	1816 B
AnswerDeserialize	MsgPackCli	8.558 μs	NA	-	0.3357	-	-	2904 B
AnswerDeserialize	ProtobufNet	5.752 μs	NA	-	0.4807	0.0076	-	4064 B
AnswerDeserialize	SpanJson	6.044 μs	NA	-	0.2213	-	-	1864 B
AnswerDeserialize	SystemTextJson	16.219 μs	NA	-	0.2441	-	-	2208 B
AnswerDeserialize	UTF8Json	9.998 μs	NA	-	0.2136	-	-	1864 B
AnswerSerialize	BinaryFormatter	66.971 μs	NA	3724 B	5.3711	0.3662	-	45642 B
AnswerSerialize	BsonNet	31.548 μs	NA	1418 B	2.5635	0.1831	-	21600 B
AnswerSerialize	Ceras	3.562 μs	NA	476 B	0.5608	0.0038	-	4704 B
AnswerSerialize	DataContract	15.066 μs	NA	2808 B	1.8311	0.0458	-	15440 B
AnswerSerialize	FsPickler	13.236 μs	NA	793 B	0.8240	-	-	6952 B
AnswerSerialize	Hyperion	7.305 μs	NA	1015 B	0.5722	-	-	4824 B
AnswerSerialize	Jil	6.322 μs	NA	1827 B	1.2741	0.0229	-	10688 B
AnswerSerialize	JsonNet	21.092 μs	NA	1799 B	1.4954	0.0305	-	12584 B
AnswerSerialize	MessagePack_v1	3.068 μs	NA	469 B	0.0572	-	-	496 B
AnswerSerialize	MessagePack_v2	3.224 μs	NA	469 B	0.0572	-	-	496 B
AnswerSerialize	MessagePackLz4_v1	3.860 μs	NA	450 B	0.0572	-	-	480 B
AnswerSerialize	MessagePackLz4_v2	4.301 μs	NA	451 B	0.0534	-	-	480 B
AnswerSerialize	MsgPack_v1_str_lz4	5.345 μs	NA	864 B	0.0992	-	-	888 B
AnswerSerialize	MsgPack_v1_string	3.801 μs	NA	1263 B	0.1526	-	-	1296 B
AnswerSerialize	MsgPack_v2_opt	3.086 μs	NA	433 B	0.0534	-	-	464 B
AnswerSerialize	MsgPack_v2_str_lz4	6.036 μs	NA	865 B	0.1068	-	-	896 B
AnswerSerialize	MsgPack_v2_string	3.900 μs	NA	1263 B	0.1526	-	-	1288 B
AnswerSerialize	MsgPackCli	6.460 μs	NA	519 B	0.4578	-	-	3864 B
AnswerSerialize	ProtobufNet	2.433 μs	NA	497 B	0.1564	-	-	1336 B
AnswerSerialize	SpanJson	3.824 μs	NA	1869 B	0.2213	-	-	1904 B
AnswerSerialize	SystemTextJson	8.367 μs	NA	1796 B	0.2747	-	-	2336 B
AnswerSerialize	UTF8Json	6.091 μs	NA	1869 B	0.2213	-	-	1896 B

So the hacky Jil_, Ceras_ and so on got their correct names..

[JohannesDeml]

Not sure why tthe CI didn't run through... seems like the windows task was canceled:

##[error]An error occurred while provisioning resources (Error Type: Disconnect).
,##[warning]Received request to deprovision: The request was cancelled by the remote provider.
Agent: Azure Pipelines 4
Started: Today at 10:43 AM
Duration: 14m 29s

[AArnott]

Thanks