Completes removal of DynamicYaml

This is a continutation of 72aab48 which due to issues with the build could not be tested.

This commit runs ensures all the unit tests works and additionally simplifies the `Config` object signficantly (it no longer relies on scanning YAML document nodes but rather uses a generic deserialization to store an object graph). We've also moved to using a `Loaded` event to fire post load hooks; the previous method that coopted property setters was ultimately not useful because it was invoked during serialization, before all needed properties were set.

As we use American spelling for code:
 - this commit to fixes the spelling on `Yaml.Deserialize`.
 - this commit also fixes the spelling of Neighborhood.

Closes #119

AudioAnalysis.sln.DotSettings

@@ -257,6 +257,9 @@
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002ECSharpPlaceAttributeOnSameLineMigration/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateBlankLinesAroundFieldToBlankLinesAroundProperty/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateThisQualifierSettings/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EUnitTestFramework_002ESettings_002EMigrations_002ERemoveBuildPolicyAlwaysMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:String x:Key="/Default/Housekeeping/UnitTestingMru/UnitTestSessionDefault/LogSeverity/@EntryValue">TRACE</s:String>
+	<s:Int64 x:Key="/Default/Housekeeping/UnitTestingMru/UnitTestSessionDefault/OutputLineNumberLimit/@EntryValue">1000</s:Int64>
 	<s:Boolean x:Key="/Default/ReSpeller/UserDictionaries/=en_005Fus/@KeyIndexDefined">True</s:Boolean>
 	<s:Boolean x:Key="/Default/ReSpeller/UserDictionaries/=en_005Fus/Words/=Anthony/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/ReSpeller/UserDictionaries/=en_005Fus/Words/=appenders/@EntryIndexedValue">True</s:Boolean>

src/Acoustics.Shared/Acoustics.Shared.csproj

@@ -44,6 +44,7 @@
     <WarningLevel>4</WarningLevel>
     <CodeAnalysisRuleSet>..\..\style.ruleset</CodeAnalysisRuleSet>
     <Prefer32Bit>false</Prefer32Bit>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -53,6 +54,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <Prefer32Bit>false</Prefer32Bit>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="CsvHelper, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8c4959082be5c823, processorArchitecture=MSIL">