Add documentation markdown for verifier

dmnverifierapi/README.md

@@ -10,3 +10,6 @@ This project contains all source files of the implementation, created for the ma
 Based on
 - [Quarkus](https://quarkus.io/)
 - [Camunda DMN](https://github.com/camunda/camunda-dmn-model/)
+
+## Verifier
+- [Overview verifier](verifier.md)

dmnverifierapi/verifier.md

+# Verifier
+[[_TOC_]]
+
+## Overview 
+- [Verification Classification (Group of verifier)](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\classification)
+- [Verification Type (identification of verifier + name + description for single verifier)](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\types)
+- [Verifier (Concrete implementation)](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\impl)
+
+## Implementations
+
+### DRD Modeling Level Verification
+- Classification: [DrdModelingLevelVerification](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\classification\DrdModelingLevelVerification.java)
+
+#### Lonely Data Input Verification
+- Type: [LonelyDataInputVerification](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\types\LonelyDataInputVerification.java)
+- Verifier: [LonelyDataInputVerifier](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\impl\LonelyDataInputVerifier.java)
+
+##### Description
+Checks for any input data node, if it has **no** connection to at least one decision table.
+
+##### Algorithm
+```
+doVerification (Definition d) {
+    define rL as ResultList
+    for each (InputNode i in d.getInputNodes()) {
+        if (i.hasNoConnectedDecisionNodes()) {
+            add i to rL
+        }
+    }
+    return rL
+}
+```
+
+### Modeling Level Verification
+- Classification: [ModelingLevelVerification](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\classification\ModelingLevelVerification.java)
+
+#### Predefined Existing Value Verification
+- Type: [PredefinedExistingValueVerification](\src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\types\PredefinedExistingValueVerification.java)
+- Verifier: [PredefinedExistingValueVerifier](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\impl\PredefinedExistingValueVerifier.java)
+
+##### Description
+TODO
+
+##### Algorithm
+```
+TODO
+```
+
+
+#### Predefined Missing Value Verification
+- Type: [PredefinedMissingValueVerification](\src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\types\PredefinedMissingValueVerification.java)
+- Verifier: [PredefinedMissingValueVerifier](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\impl\PredefinedMissingValueVerifier.java)
+
+##### Description
+TODO
+
+##### Algorithm
+```
+TODO
+```
+
+
+### Decision Logic Level Verification
+- Classification: [DecisionLogicLevelVerification](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\classification\DecisionLogicLevelVerification.java)
+
+#### TODO...
+
+
+### SyntaxLevelVerification
+- Classification: [SyntaxLevelVerification](src\main\java\de\unikoblenz\fgbks\core\dmn\verification\verifier\classification\SyntaxLevelVerification.java)
+
+#### TODO...