Parser and type checker almost completely working

Added testing env

resources/Types/testType1.rosetta

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+type Period: <"description">
+    periodMultiplier int (1..1) <"A time period multiplier, e.g. 1, 2 or 3 etc. A negative value can be used when specifying an offset relative to another date, e.g. -2 days.">
+    testMany TestType (0..*) <"Test many">
+    testSome TestSomeType (1..*) <"Test some">
+    testMaybeOne TestZeroOneType (0..1) <"Test zero or one">
+    testAll Test (2..15) <"Test all">

resources/Types/testType2.rosetta

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+type TestType:
+    periodMultiplier int (1..1)

resources/Types/testType3.rosetta

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+type TestSomeType: <"description">
+    periodMultiplier int (1..1) <"A time period multiplier, e.g. 1, 2 or 3 etc. A negative value can be used when specifying an offset relative to another date, e.g. -2 days.">

resources/Types/testType4.rosetta

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+type TestZeroOneType extends Period:
+    periodMultiplier int (1..1)

resources/Types/testType5.rosetta

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+type WrongCardinality: <"description">
+    periodMultiplier int (1.1) <"A time period multiplier, e.g. 1, 2 or 3 etc. A negative value can be used when specifying an offset relative to another date, e.g. -2 days.">

resources/Types/testType6.rosetta

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+type WrongCardinality2: <"description">
+    periodMultiplier int (1..a) <"A time period multiplier, e.g. 1, 2 or 3 etc. A negative value can be used when specifying an offset relative to another date, e.g. -2 days.">

resources/Types/testType7.rosetta

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+type MissingType: <"description">
+    periodMultiplier (1.1) <"A time period multiplier, e.g. 1, 2 or 3 etc. A negative value can be used when specifying an offset relative to another date, e.g. -2 days.">