Display javacore.txt info in the console output

Display 10 - 20 lines after `1XMCURTHDINFO`.
`1TISIGINFO` - one line
```
1XMCURTHDINFO Current thread
3XMTHREADINFO "ForkJoinPool.commonPool-worker-1" J9VMThread:0x000076FC805EB900, omrthread_t:0x000076FC805DF508, java/lang/Thread:0x000076FC5E43C578, state:R, rawStateValue:0x1, prio=5
3XMJAVALTHREAD (java/lang/Thread getId:0x19, isDaemon:true)
3XMJAVALTHRCCL jdk/internal/loader/ClassLoaders$AppClassLoader(0x000076FC5E068620)
3XMTHREADINFO1 (native thread ID:0x39F873, native priority:0x5, native policy:UNKNOWN, vmstate:R, vm thread flags:0x00000020)
3XMTHREADINFO2 (native stack address range from:0x000076FC40940000, to:0x000076FC409C0000, size:0x80000)
3XMCPUTIME CPU usage total: 0.150353092 secs, current category="Application"
3XMHEAPALLOC Heap bytes allocated since last GC cycle=563224 (0x89818)
3XMTHREADINFO3 Java callstack:
4XESTACKTRACE at jdk/MHProxy134/MHPRaceIface126/0x00000000b0038da0.(Bytecode PC:0)
4XESTACKTRACE at java/lang/ClassLoader.defineClassImpl1(Native Method)
4XESTACKTRACE at java/lang/ClassLoader.defineClassInternal(ClassLoader.java:486(Compiled Code))
4XESTACKTRACE at java/lang/Access.defineClass(Access.java:316(Compiled Code))
4XESTACKTRACE at java/lang/invoke/MethodHandles$Lookup$ClassDefiner.defineClass(MethodHandles.java:2360(Compiled Code))
4XESTACKTRACE at java/lang/invoke/MethodHandles$Lookup$ClassDefiner.defineClassAsLookup(MethodHandles.java:2339)
4XESTACKTRACE at java/lang/invoke/MethodHandleProxies.newProxyClass(MethodHandleProxies.java:269)
4XESTACKTRACE at java/lang/invoke/MethodHandleProxies$1.computeValue(MethodHandleProxies.java:206)
4XESTACKTRACE at java/lang/invoke/MethodHandleProxies$1.computeValue(MethodHandleProxies.java:203)
4XESTACKTRACE at java/lang/ClassValue.getFromHashMap(ClassValue.java:235)
4XESTACKTRACE at java/lang/ClassValue.getFromBackup(ClassValue.java:212)
```

```
1TISIGINFO Dump Event "gpf" (00002000) received
```

Start by locating the console-output path that handles javacore.txt information and inspect how diagnostic sections are selected. The change is done when output includes 10–20 lines after 1XMCURTHDINFO and one line for 1TISIGINFO, matching the formats shown in the issue.

Written by the indexing model from the issue text.