added tests, fixed issues with overriding/format

In the documentation it states that child values can override the parent
values. Originally this code did not support that but now it does. Also
added in testing inspired by the previous tests.

Signed-off-by: cullvox <cullvox@outlook.com>

tests/testdata/MetaComponentParse/component_basic.json

@@ -0,0 +1,4 @@
+{
+  "description": [{"text": "Hello, Component!"}],
+  "expected_output": "Hello, Component!"
+}

tests/testdata/MetaComponentParse/component_with_extra.json

@@ -0,0 +1,18 @@
+{
+  "description": [
+    {
+      "text": "Hello, ",
+      "color": "red",
+      "bold": true,
+      "italic": true,
+      "extra": [
+        {
+          "extra": "Component!",
+          "bold": false,
+          "italic": false
+        }
+      ]
+    }
+  ],
+  "expected_output": "<font color=\"red\"><b><i>Hello, </i></b></font><font color=\"red\">Component!</font>"
+}

tests/testdata/MetaComponentParse/component_with_format.json

@@ -0,0 +1,13 @@
+{
+  "description": [
+    {
+      "text": "Hello, Component!",
+      "color": "blue",
+      "bold": true,
+      "italic": true,
+      "underlined": true,
+      "strikethrough": true
+    }
+  ],
+  "expected_output": "<font color=\"blue\"><b><i><u><s>Hello, Component!</s></u></i></b></font>"
+}

tests/testdata/MetaComponentParse/component_with_link.json

@@ -0,0 +1,12 @@
+{
+  "description": [
+    {
+      "text": "Hello, Component!",
+      "clickEvent": {
+        "open_url": true,
+        "value": "https://google.com"
+      }
+    }
+  ],
+  "expected_output": "<a href=\"https://google.com\">Hello, Component!</a>"
+}

tests/testdata/MetaComponentParse/component_with_mixed.json

@@ -0,0 +1,40 @@
+{
+  "description": [
+    {
+      "text": "The quick ",
+      "color": "blue",
+      "italic": true
+    },
+    {
+      "text": "brown fox ",
+      "color": "#873600",
+      "bold": true,
+      "underlined": true,
+      "extra": {
+        "text": "jumped over ",
+        "color": "blue",
+        "bold": false,
+        "underlined": false,
+        "italic": true,
+        "strikethrough": true
+      }
+    },
+    {
+      "text": "the lazy dog's back. ",
+      "color": "green",
+      "bold": true,
+      "italic": true,
+      "underlined": true,
+      "strikethrough": true,
+      "extra": [
+        {
+          "text": "1234567890 ",
+          "color": "black",
+          "strikethrough": false,
+          "extra": "How vexingly quick daft zebras jump!"
+        }
+      ]
+    }
+  ],
+  "expected_output": "<font color=\"blue\"><i>The quick </i></font><font color=\"#873600\"><b><u>brown fox </u></b></font><font color=\"blue\"><i><s>jumped over </s></i></font><font color=\"green\"><b><i><u><s>the lazy dog's back. </s></u></i></b></font><font color=\"black\"><b><i><u>1234567890 </u></i></b></font><font color=\"black\"><b><i><u>How vexingly quick daft zebras jump!</u></i></b></font>"
+}