fix(java): Escape */ in package-info.java (#526)

Code examples in the `README.md` file can contain multi-line comments
that will interfere with the comment block in `package-info.java`.
Escaping the `*/` to `*{@literal /}` fixes that issue.

Author: RomainMuller

packages/codemaker/package-lock.json

@@ -10,6 +10,9 @@ If this file starts with an "H1" line (in our case `# jsii Calculator`), this
 heading will be used as the Sphinx topic name. Otherwise, the name of the module
 (`jsii-calc`) will be used instead.
 
+## Code Samples
 
-
-
+```ts
+/* This is totes a magic comment in here, just you wait! */
+const foo = 'bar';
+```

packages/jsii-calc/README.md

@@ -197,7 +197,7 @@
   },
   "name": "jsii-calc",
   "readme": {
-    "markdown": "# jsii Calculator\n\nThis library is used to demonstrate and test the features of JSII\n\n## Sphinx\n\nThis file will be incorporated into the sphinx documentation.\n\nIf this file starts with an \"H1\" line (in our case `# jsii Calculator`), this\nheading will be used as the Sphinx topic name. Otherwise, the name of the module\n(`jsii-calc`) will be used instead.\n\n\n\n\n"
+    "markdown": "# jsii Calculator\n\nThis library is used to demonstrate and test the features of JSII\n\n## Sphinx\n\nThis file will be incorporated into the sphinx documentation.\n\nIf this file starts with an \"H1\" line (in our case `# jsii Calculator`), this\nheading will be used as the Sphinx topic name. Otherwise, the name of the module\n(`jsii-calc`) will be used instead.\n\n## Code Samples\n\n```ts\n/* This is totes a magic comment in here, just you wait! */\nconst foo = 'bar';\n```\n"
   },
   "repository": {
     "type": "git",
@@ -8604,5 +8604,5 @@
     }
   },
   "version": "0.11.1",
-  "fingerprint": "uCNbkp5+1duLs9lW2h4C+T4dTtV6ZArNhzgT39ChGpk="
+  "fingerprint": "9L8/rsLS+UYbDYN+YX0Wb3gybgQNUCyFdD52GKTWEs0="
 }

packages/jsii-calc/test/assembly.jsii

@@ -365,7 +365,7 @@ class JavaGenerator extends Generator {
         this.code.line('/**');
         if (mod.readme) {
             for (const line of md2html(mod.readme.markdown).split('\n')) {
-                this.code.line(` * ${line}`);
+                this.code.line(` * ${line.replace(/\*\//g, '*{@literal /}')}`);
             }
         }
         if (mod.docs.deprecated) {